GB/T 19650-2005 Determination of 437 pesticide residues in animal tissues by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry GB/T19650-2005 standard download decompression password: www.bzxz.net

ICS 67. 120
National Standard of the People's Republic of China
GB/T19650—2005
Method for determination of 437 pesticide residues in animal tissues-GC-MS and LC-MS-MS method
Promulgated on 2005-02-04
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Administration of Standardization of the People's Republic of China
Implementation on 2005-08-01
GB/T19650-2005
Appendices A, B, C, D, E, F, G and II of this standard are informative appendices. This standard was proposed by Qinhuangdao Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. This standard was issued by Hebei Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. Drafting unit of this standard: Zafudao Exit-Entry Inspection and Quarantine Bureau of the People's Republic of China Main drafters of this standard: Pang Guofang, Cao Yanzhong, Zhang Jinjie, Fan Chunlin, Liu Shuiming, Li Xuemin, Jia Guangqun, Shi Yuqiu. Wu Yanping, Tongtong
This standard is a national standard issued by Shouxin. 1 Scope
Determination of 437 pesticide residues in animal tissues by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry GB/T19650—2005
This standard specifies the determination of 437 pesticide residues (see Appendix A) in pork, beef, mutton, rabbit meat and chicken by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry.
This standard is applicable to the determination of 137 pesticide residues in pork, beef, mutton, rabbit meat and chicken. The method detection limit of this standard is 0.u002mg/kg~0.3000mg/kg (see Appendix A). 2 Normative references
The clauses in the following documents become clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, its latest version applies to this standard. The precision of the CB/T6379 test method is determined by inter-laboratory testing to determine the repeatability and reproducibility of the standard test method (GB/T6379—1986, ncqISO 5725:1981) G13/+6682 Specifications and test methods for water used in analytical laboratories (GB/T6682--1992, neqJSO3696:1987) GB/T9695.19 Sampling methods for meat and meat products (GB/T9695.19-1988, ncqIS(/DIS3100-1:1984) 3 Principle
The sample is homogenously extracted with cyclohexane-ethyl acetate (1+1). After the extract is concentrated and fixed to volume, it is purified by gel permeation chromatography. According to different detection methods, it is fixed to volume with different reagents and then tested by gas chromatography-mass spectrometer and phase chromatography-tandem mass spectrometer. 4 Reagents and materials
Unless otherwise specified, water is the first-class water specified in CB/T6682. 4.1 Acetonitrile: chromatographically pure.
4.2 Cyclohexane: chromatographically pure.
4.3 Ethyl acetate: chromatographically pure,
4.4 Cyclohexane-ethyl acetate mixed solvent: 1+1.4.5 N-hexane: chromatographically pure.
4.6 Methanol: chromatographically pure.
4.7 Anhydrous sodium sulfate: analytically pure. Burn at 650℃ before use, place in a desiccator, cool and set aside. 4.8 Pesticide standard substance: purity 295%.
4.9 Pesticide standard solution
4.9.1 Standard stock solution||tt ||Accurately weigh 5tng~10mg (accurate to 0.1mg) of each pesticide standard (4.8) and place them in a 10.mL volumetric flask. According to the solubility of the standard and the needs of the measurement, select toluene, toluene-acetone mixture, dichloromethane or methanol and other solvents to dissolve and dilute to the scale (see Appendix A for solvent selection).
4.9.2 Mixed standard solution (mixed standard solutions A, B, C, I and E) According to the properties and retention time of the pesticides, divide the 437 pesticides into five groups: A, B, C, D, and E. Determine the concentration of each pesticide in the mixed standard solution based on the response sensitivity of the instrument. For the grouping of 437 pesticides and the concentration of mixed standard solutions in this standard, please refer to Appendix A:
According to the group number of each pesticide, the concentration of the mixed standard solution and the concentration of the standard stock solution, transfer a certain amount of the single pesticide standard stock solution into a 100 mL volumetric flask, use toluene for pesticides in groups A, B, and CD, and methanol for pesticides in group F to the mark, and store the mixed standard solution at 4°C in the dark for one month.
4.9.3 Internal standard solution
Put 3.5 tng of heptachlor epoxide in a 100 ml volumetric flask and adjust to the mark with formazan. 4.9.4 Matrix mixed standard working solution
The matrix mixed standard working solution of pesticide groups A, B, CD is prepared by adding 40 μL of internal standard solution (4.9.3) and a certain volume of mixed standard solution of groups A, B, C, D (4.9.2) to 1.0 mL of sample blank matrix extract, mixing them evenly to prepare matrix mixed standard working solutions A, B, C and D.
The matrix mixed standard working solution of pesticide group E is prepared by adding different volumes of mixed standard solution of group E to sample blank solution to prepare matrix mixed standard working solutions of different concentrations, and the standard curve is drawn manually. The matrix mixed standard working solution should be prepared before use. 5 Instruments
5.1 Gas chromatography-mass spectrometer: equipped with electron impact source (EI). 5.2 Liquid chromatography-tandem mass spectrometer: equipped with electrospray ionization source (FSI). 5.3 Gel permeation chromatograph equipped with a 40 nm × 25 m purification tube filled with RIO-BeadsS-X3. 5, 4 Analytical balance; one each with a sensitivity of 0, 1 mg and 0.01 mg. 5.5 Rotary evaporation.
5.6 Homogenizer: maximum speed 24000 r/min. 5.7 Centrifuge: maximum speed 4200 r/min. 5.8 Nitrogen drying.
5.9 Chicken heart bottle; 200 ml.
5. 10 Pipette; 1 mLa
6 Sample preparation and storage
6.1 Sample preparation
The sample extracted according to GB/T9695.19 is minced with a meat grinder, thoroughly mixed, and divided into not less than 500g by quartering method as a sample, and placed in a cleaner, sealed, and marked. 6.2 Sample storage
The sample is frozen and stored at -18℃.
7 Determination steps
7.1 Extraction
Weigh 10 g of sample (accurate to 0.01 g), put it into a 50 ml centrifuge tube containing more than 20% anhydrous sodium sulfate (4.7), and add 35 ml of cyclohexane and ethyl acetate mixed solvent (4.4). Use a homogenizer (5.6) to homogenize and extract at 15000 1/min for 1.5 minutes, place the centrifuge tube in a centrifuge (5.7) and centrifuge at 3000 r/min for 3 minutes. The supernatant is passed through a simple funnel filled with anhydrous sodium sulfate and collected in a 100 tL chicken heart bottle [5.9]. The organic residue in the centrifuge tube is then extracted with 5 ml of ethyl cyclohexane dicarboxylate. The supernatant is transferred to the above simple funnel, the extract is combined, and the extract is evaporated to about 5 ml in a rotary evaporator (5.5) at 40 °C water bath, and then it is purified. According to the fat content, the extract is collected in a weighed chicken heart bottle, and evaporated to 5 ml in a rotary evaporator at 40 °C water bath, and then the residual solvent is blown off with a nitrogen blow dryer. Finally, the chicken heart bottle is weighed and purified. 7.2 Gel permeation chromatography purification
7.2.1 Conditions
a) Purification column: 400 mmx25min+BIOBeads $x3 filling material: b)
Detection wavelength: 254nml
Flow: ethyl acetate-cyclohexane (1+1); d)
Flow rate: 5ml./min;
Reverse sample: 5mL
f) Start collection time: 22min,
g) End collection time: 40 min.
7.2.2 Purification
GB/T19650—2005
Concentrate the extract or fat (7.1) Dissolve in ethyl acetate + cyclohexane mixed bath (1+1) and transfer to a 10mL volumetric flask. Wash the flask twice with 5mL cyclohexane + acetate mixed solvent and transfer to the above 10mL volumetric flask. Then use cyclohexane-ethyl acetate mixed solvent to make up to the mark and shake well. Filter the sample into a 10 mL test tube and purify it by gel permeation chromatography. Collect the fractions of 22min10min in a 100mL flask and evaporate to 0.5ml in a 40℃ water bath. The pesticides in group F were dried with nitrogen, and the residue was dissolved with 1.0 IL acetonitrile water (60 140) for detection by liquid chromatography-tandem mass spectrometry. For the pesticides in groups A, B, C, and D, 2 × 5 ml of normal ethane was added and the solvent was exchanged twice at 40 ° C using a rotary evaporator to make the final sample volume about 1 ml. 40 μl of internal standard solution (4.9.3) was added and mixed. It was then subjected to gas chromatography-mass spectrometry. 7.3 Determination
7.3.1 Gas chromatography-mass spectrometry
7.3.1.1 Conditions: Chromatographic column, DB-1701 (30mx0.25mm×0.25μm) quartz capillary column or equivalent: a) Chromatographic column temperature: 40℃ for 1min, then programmed at 30℃/min to 130℃ in a wet chamber, then heated to 250℃ at 5/min, then heated to 300℃ at 10℃/min and maintained for 5min; carrier nitrogen, purity 299.999 light, flow rate 1.2 ml./minc) Injection port temperature: 290℃: a) Injection volume: μ
Injection mode: non-split injection, open the split valve and septum purge valve after 1.5min: Electron bombardment source: 70 eV; b) Ion source temperature: 230℃; c) GC MS interface temperature: 280℃
Selected ion monitoring: Select a quantitative ion and 2~3 qualitative ions for each compound. All ions to be detected in each group are detected in the order of peak elution and in different time periods. The retention time, quantitative ion, qualitative ion and the half-value of the quantitative ion and the qualitative ion of each compound are shown in the appendix. The start time and retention time of each group of detection ions are shown in appendix 7. 3. 1.2 Qualitative determination
The sample solution is determined in four groups A, B, C and D according to the gas chromatography-mass spectrometry determination. Group A contains 92 compounds, Group B contains 09 compounds, Group C contains 75 compounds, and Group D contains 102 compounds. Sample tracing is performed. If the retention time of the detected chromatographic peak is consistent with the retention time of the standard, and the selected ions all appear in the sample mass spectrum after background subtraction, and the ion abundance ratio selected in Figure II is consistent with the ion abundance ratio of the standard, then it can be judged that this pesticide compound exists in the sample. If it cannot be confirmed, the sample should be re-injected and confirmed by scanning mode (with sufficient sensitivity) or by adding other confirming ions or by other analytical instruments with higher sensitivity.
7.3.1.3 Quantitative determination
This method adopts the internal standard method for single ion quantitative determination, and the internal standard is heptachlor epoxide. To reduce the influence of the matrix: the matrix mixed standard working solution should be used for quantitative determination. The concentration of the standard solution should be similar to that of the compound to be tested. The selected ion monitoring GC-MS diagram of the four groups of standard substances A, B, C, and D in this method in GB/T 19650-2005
chicken matrix is ​​shown in Appendix D. 7.3.2, Liquid chromatography-tandem mass spectrometry
7.3. 2. 1 Conditions
Chromatograph: AilantismdCie, 3μm, 5ummX2.1mm or equivalent; a)
Mobile phase and flow rate see Table 1;
Column temperature: 40℃;
Injection volume: 20μL;
Scanning mode: positive ion scanning;
Detection mode: multiple reaction monitoring;
Electrospray isovoltage: 5500V;
Nebulizer gas pressure 0.076MPat
Curtain gas pressure 0.083MPt;
Auxiliary gas swirl speed: 6 L/min:
High ion source temperature: 350℃
For monitoring ion pairs, collision energy and declustering voltage, see Appendix E. Table 1
Mobile phase and flow rate
Time/(nin)）
7.3.2.2 Qualitative determination
Flow rate/(μL/min）
Water/(%)
Ethylene/(%)
The sample solution was determined according to the liquid chromatography-tandem mass spectrometry conditions. When the sample was determined, if the retention time of the detected chromatographic peak was consistent with that of a certain pesticide in the matrix standard, and the abundance ratio of the two selected ion pairs was consistent, it could be determined that the pesticide residue existed in the sample.
7.3.2.3 Quantitative determination
In this method, the liquid chromatography-tandem mass spectrometry adopted the external standard calibration curve method for quantitative determination. In order to reduce the influence of the matrix on the quantitative determination, a series of matrix standard working solutions used should be prepared with blank sample solution, and the matrix standard working solutions should be injected to draw the standard curve, and the response values ​​of the pesticides in the measured samples should be ensured to be within the linear range of the instrument. The total ion flow diagram of the E group standard substances in the chicken matrix of this method can be found in Appendix F.
7.4 Parallel test
Carry out parallel test on the same sample according to the above steps. 7. 5
Except that the sample is not weighed, the above steps are followed. 8. Calculation
The results of gas chromatography-mass spectrometry can be automatically calculated by a computer according to the internal standard method, or by formula (1): 8,1
Wherein:
X is the peak area of ​​the analyte in the sample, in milligrams per gram (mg/kg); A is the peak area of ​​the analyte in the sample solution; A\ is the peak area of ​​the analyte in the matrix mixed standard working solution; A is the peak area of ​​the internal standard in the matrix mixed standard working solution; A is the peak area of ​​the internal standard in the sample solution;
is the concentration of the analyte in the matrix mixed standard working solution, in grams per liter (gram/liter); the concentration of the internal standard in the matrix mixed standard working solution, in milligrams per liter (mg/liter); the mass of the internal standard added to the sample solution, in micrograms (μg); the mass of the sample or the mass of fat represented by the sample solution, in grams (g). m
GB/T19650—2005
8.2 Liquid chromatography-tandem mass spectrometry determination adopts the standard inference curve method for quantitative determination - the standard inference curve method is used for the most accurate result. The result is calculated according to formula (2): X=tx
Wherein:
X is the residual amount of the measured component in the sample. The unit is milligrams per kilogram (mg/kg); V is the solution concentration of the measured component obtained from the standard curve. F., the unit is milligrams per liter (mg/I.); m is the mass of the sample represented by the sample solution or the mass of fat, the unit is gram (g). 9 Precision
.-.-( 2)
The precision data of this standard are determined in accordance with the provisions of GB/T6379. The values ​​of repeatability and reproducibility are calculated with a confidence level of 95%. For the precision data of this standard method, please refer to Appendix GGB/T19650—2005
Appendix House
(Informative Appendix)
437 kinds of pesticides Chinese and English names, method detection limits, grouping, solvent selection and mixed standard solution concentrations Table 137 kinds of pesticides Chinese and English names, method detection limits, grouping, solvent selection and mixed standard solution concentrations, see Table A, 1. Table A.1437 pesticides Chinese and English names, method detection limits, grouping, solvent selection and concentration of mixed standard solutions Serial number
Chinese name
Cycloheptachlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Dinothiocarb
Dinothiocarb
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor
Diacylaminochlor Heptachlar-cpoxide
Simazine
Dichlormid
Dichlorphos
Quanetrichlor
Zikedai
Aldrin
Galenamide
Picandisc
Prochlormid
Huanliangjin
English Name
Heptachlar-cpoxide
Allidochlor
Dichlormid
Etridiazol
Chlormephos
Prochlor phan
Cyelaate
Diphenylaine
Chlordinieforn
Ethalfluralir
Phorave
Thiamet mn
Quinlozcfe
Atrazine-degethyl
Clomasone
Dizzinton
Fonafas
Etritnfos||t t||Simazine
I'ropetamphos
Secbumeton
[iclilafenthior?
P'ronamide
Mexararhate
Aldri:
initramine
Rohnel
Promcuiyne
Cyprazine
Detection limit/
(mg/kg)
D, 025 0
0,0i2 5
0, 032 5
0, 012 5
0, 025 0
Toluene + meat bacteria (8--2)
Methyl tea + acetone (9+1)
Methyl acetone (911)
Mixed standard solution
Concentration/(mg/I)
Chinese name
Vinyl sclerotin
9-BHC
Metabalin
Gannilang
Methyl parathion
BHC
Beicarbon magnet
Makongthion
Carbothion
Paraben
Paraben
Sanjialu
Lironglong
Mite killing Ether
Ethyl bromophos
Quinafon
Trans-fludan
Bangchesan
Metrazolin
Fenthiocarb
Prothiophos
Xanthate
Fuyaoli
Chapurin
Napropamide
Fenxianshun
Fluorosulfur
Chapurin
Ethylphosphonic acid sulfonate
Kuixiutan
Table A.1 (continued)
English name
Vinclozolin
BetH-HCH
Metalaxyl
Chlorpyrilos (-ethyl)
Muibyl-Puretlhion
Anthraguinone:
Ielia-HCH
Fenthion
Malathicn
Feniurcthion
FaraGxon-tih yl
Triadnefon
Paraihion
Pendlinmethalit
Linuren
Chkorbeiside
Eromopi:as-cthye
Quinalphos
tra ns.Chlordare
Fhenthoate
Metazachlor
Fencthiccarlh
Prethiophos
Chlotfurenol
Dieldrin
Procymidoue| |tt||Methirtarhinn
Nuprapamide
Oxadiazone
Fenaniphos
Tetrasul
Aramite
Buprimae
Carboxir
Pickup limit!
(mg/kg)
0, 05 (
GB/T 19650--2005
Mixed standard liquid
Concentration/(mg/L)
Toluene-acetone($→1)
0. 037 5±Toluene+acetone(9--1
Dichloromethane
.........
GB/T 19650-2005
oxygenamide
Chinese name
p,p\-dididi
ethionylphosphonium
thioprophosphonium
ethiconazole-1
ethiconazole-2
diclofop-butyl
propiconazole
laoanlin
bifenthrin
hongkebaiwei
malt rust
chlorfenapyr
methoxychlor||t t||Oxidative
Pyridazinol
Chlorpyrifos
Thiosulfuron
Triclosan
Oxycyanin
Instant-permethrin
Reverse test permethrin
Pyraclofos
Permethrin
Ventilfamin
Brommethrin
Cyclomethrin
Butylfamin
Table A.1 (continued)||tt ||English branch name
Flutolanil
Ethion
Sulprofos
Etaronzole-1
Etacunazole2
Myelohutanil
Diclofop-runthy!
Prupirnnazole
Fensulfothin| |tt||Bifenthrin
Carhosulen
Esenodanil
Nuarinnl
Methoxychlar
Oxadixyl
Tetramethirn
Tebuconaznle
Norflurazon
Pyridaphent hion
Phesmet
Tetradifan
Oxyearhoxin
cis-Petimethrir
Tratx-Permethrin
Pyrazophos
Cypetmethrin
Fenvalerate
Deltamerhrin
Butylat
:ichlobenil
Detection limit/
(mg/kg)
0, 032 5
Toluene+acetone(9+1)
Toluene+acetone(9—1)
Toluene+acetone（9+1)
Mixed standard solution
Liquidity/(mg/L）
...........
w.iw.....
Kecaodi
Chinese name
Trichloropyridine
Methodinophos
Dimophos
Tetrafluoronitrobenzene
Heptylphos
Hexachlorobenzene
Ethiopromide
Formula-bananadiphos
Leafcloth
Trans-antimony
Nitrogen island scald
Anthracene
Cyclodendron
District·Six-hole Six
Terbuthion
Tebuthion
Cyprolin
Dioxin
Promethazine
Chlorphenamine
Oxygen nitrate Amine
Terbuthylazine
Chloroneh
Chlorpyrifos-methyl
Dimethochlor
Methiochlor
Methiochlor
Pebulate
Table A.1 (continued)
English name
Nitrapyrin
Mevinphos
Chloroneh
Fecnazune
Heplariophos
Hexachlorobenzene
Ethaprophus
cis -Diallele
Prupachlor
trans-Diallate
Trifluralin
Chlorptopha
Sufatep
Sulfailate
Alpha-H CH
Terhufas
Terbumeton
Proflutelin
Dioxathion
Propazine
Chlarbulem
Diclran
Terbut hylazine
Munolinuron
Cyanophas
Chlorpyrifos-methyl
Desmetryn
Dimerharhlor
Atachlor
Pirimiphos-methy!
Terbutryn
..................
Cyanophas
Chlorpyrifos-methyl
Desmetryn
Dimerharhlor
Atachlor
Pirimiphos-methy!
Terbutryn
..................
Cyanophas
Removal limit
(mg/kg)
0,03? 5
GB/T19650—2005
Mixed standard solution
Concentration/(mg/3)
Toluene+lactone (9+1)
........
.......
GB/T 19650—2005
Chinese name
Dicofol
Isopropylamine
Hua Yidan
Pyrimidinephos
Methoprene
Australopithecin
Bacteriostatic
Ethoxyfuroxanthine
Isopropylamine
Yuxuphos
Cis-chlordane
Ethiofluanid
Li,\-DiDiyi
Butylamine
Ethiofluanid
Babiphos
Phosphosulfurization
Chachongwei
Chaoaojiang
Meatbromophos
Yanluorui enzyme
Phosphosulfurization Ketone
0-chlordane
Isoprene
Bazopol
Metoclofen
0.P'-dihydrochloride
Gaicaojin
Norweed
Dicofol
Table A, 1 (continued)
English name
Metolachior
Oxy-chlordane
Pirrriphos-ctihyf
Methoprene
Bromofos
Dichlofluanid
Fthofumes ate
lsopropalin
EndosulfarnI
Propanil
Isuferphos
Crufomate
Chlorfenvinphos
cis-Ch lordane
Tolylfruanide
4,4-DDE
Butachlor
Chlazolinate
Crotoxyphas
Iodafenphos
Tetra chlorvinphos
Clilarbromuron
Profenofos
Fluorochloridone
Buprofezin
2,4'-DDD
Endrin||tt ||HexaconazolebZxz.net
Chlorferson
2,4'-DDT
Paclobutrazol
Methoprutryne
Detection limit/
(mg/kg)
0,025 0
0, 025 0
0,037 5
0,3000
0, 025 0
0, 025 0
0,037 5
Toluene+acetone（9+1)
Mixed standard solution
Concentration/(mg/L)1(continued)
English name
Nitrapyrin
Mevinphos
Chloroneh
Fecnazune
Heplariophos
Hexachlorobenzene
Ethaprophus
cis-Diallele
Prupachlor
trans-Diallate
Trifluralin
Chlorptopha
Sufatep
Sulfailate
Alpha-HCH
Terhufas
Terbumeton
Proflutelin|| tt ||Dioxathion ||tt | Dimerharhlor | 5
GB/T19650—2005
Mixed standard solution
Concentration/(mg/3)
Toluene+lactone (9+1)
........
.......
GB/T 19650—2005
Chinese name
Dicofol
Isopropylamine
Hua Yidan
Pyrimidinephos
Methoprene
Australopithecin
Bacteriostatic
Ethoxyfuroxanthine
Isopropylamine
Yuxuphos
Cis-chlordane
Ethiofluanid
Li,\-DiDiyi
Butylamine
Ethiofluanid
Babiphos
Phosphosulfurization
Chachongwei
Chaoaojiang
Meatbromophos
Yanluorui enzyme
Phosphosulfurization Ketone
0-chlordane
Isoprene
Bazopol
Metoclofen
0.P'-dihydrochloride
Gaicaojin
Norweed
Dicofol
Table A, 1 (continued)
English name
Metolachior
Oxy-chlordane
Pirrriphos-ctihyf
Methoprene
Bromofos
Dichlofluanid
Fthofumes ate
lsopropalin
EndosulfarnI
Propanil
Isuferphos
Crufomate
Chlorfenvinphos
cis-Ch lordane
Tolylfruanide
4,4-DDE
Butachlor
Chlazolinate
Crotoxyphas
Iodafenphos
Tetra chlorvinphos
Clilarbromuron
Profenofos
Fluorochloridone
Buprofezin
2,4'-DDD
Endrin||tt ||Hexaconazole
Chlorferson
2,4'-DDT
Paclobutrazol
Methoprutryne
Detection limit/
(mg/kg)
0,025 0
0, 025 0
0,037 5
0,3000
0, 025 0
0, 025 0
0,037 5
Toluene+acetone（9+1)
Mixed standard solution
Concentration/(mg/L)1(continued)
English name
Nitrapyrin
Mevinphos
Chloroneh
Fecnazune
Heplariophos
Hexachlorobenzene
Ethaprophus
cis-Diallele
Prupachlor
trans-Diallate
Trifluralin
Chlorptopha
Sufatep
Sulfailate
Alpha-HCH
Terhufas
Terbumeton
Proflutelin|| tt ||Dioxathion ||tt | Dimerharhlor | 5
GB/T19650—2005
Mixed standard solution
Concentration/(mg/3)
Toluene+lactone (9+1)
........
.......
GB/T 19650—2005
Chinese name
Dicofol
Isopropylamine
Hua Yidan
Pyrimidinephos
Methoprene
Australopithecin
Bacteriostatic
Ethoxyfuroxanthine
Isopropylamine
Yuxuphos
Cis-chlordane
Ethiofluanid
Li,\-DiDiyi
Butylamine
Ethiofluanid
Babiphos
Phosphosulfurization
Chachongwei
Chaoaojiang
Meatbromophos
Yanluorui enzyme
Phosphosulfurization Ketone
0-chlordane
Isoprene
Bazopol
Metoclofen
0.P'-dihydrochloride
Gaicaojin
Norweed
Dicofol
Table A, 1 (continued)
English name
Metolachior
Oxy-chlordane
Pirrriphos-ctihyf
Methoprene
Bromofos
Dichlofluanid
Fthofumes ate
lsopropalin
EndosulfarnI
Propanil
Isuferphos
Crufomate
Chlorfenvinphos
cis-Ch lordane
Tolylfruanide
4,4-DDE
Butachlor
Chlazolinate
Crotoxyphas
Iodafenphos
Tetra chlorvinphos
Clilarbromuron
Profenofos
Fluorochloridone
Buprofezin
2,4'-DDD
Endrin||tt ||Hexaconazole
Chlorferson
2,4'-DDT
Paclobutrazol
Methoprutryne
Detection limit/
(mg/kg)
0,025 0
0, 025 0
0,037 5
0,3000
0, 025 0
0, 025 0
0,037 5
Toluene+acetone（9+1)
Mixed standard solution
Concentration/(mg/L)025 0
0,037 5
0,3000
0, 025 0
0, 025 0
0,037 5
Toluene+acetone（9+1)
Mixed standard solution
Concentration/(mg/L)025 0
0,037 5
0,3000
0, 025 0
0, 025 0
0,037 5
Toluene+acetone（9+1)
Mixed standard solution
Concentration/(mg/L)
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