This standard specifies the gas chromatography determination principle, reagents and materials, instruments and equipment, test conditions, test steps and result calculation of coal tar naphthalene content. This standard is applicable to the determination of coal tar naphthalene content condensed from coal gas during high-temperature coking. YB/T 5078-2001 Gas chromatography determination method for coal tar naphthalene content YB/T5078-2001 Standard download decompression password: www.bzxz.net

The People's Republic of China Ferrous Metallurgical Industry Standard YB/T 50782007 Method of determination by gas chromatography for naphthalene content in coal tar2001-07-09 Issued by the State Economic and Trade Commission Issued by the State Economic and Trade Commission Implementation on 20020101 This standard is revised on the basis of the determination method of oil-bearing gas chromatography. The main contents of this standard are as follows: The method is determined under the B standard; the restrictions on the chromatographic conditions are set; the restrictions on the stationary phase are set. This standard replaces YB/T507H-159 Method for determination of oil-bearing content in coal by gas chromatography from the date of implementation. This standard is proposed and managed by the Metallurgical Industry Information Standards Research Institute. This standard was initiated by: Baorun Group Coking Plant, Metallurgical Industry Information Standards Research Institute. The main authors of this standard are: A Guoqiang, Shi Xuejun, Xu Huahua, Sun Wei. 1 Scope
Method for determination of vapor content of coal tar by gas chromatography of the People's Republic of China Method nf feterminalon bygus eliroinutugraphyfar naphhihalene conteut in cunl LurYB/T50/82007
YB/T507399
The standard is, the gas chromatography test plan, reagents, equipment, test conditions, test steps and results
The standard is used to determine the vapor content of coal tar obtained from coal gas. 2. Standards
The clauses contained in the following standards shall constitute the clauses of this standard through the use of the text in this standard. The following standards are valid for publication and all standards are subject to revision. All parties using this standard shall use the latest version of the following standards as possible GB/T226819A0 Determination of moisture content in chemical products K/228S1394 Oil products from coking stations YB/T5135-19\4 Coking products are screened 3 Principles
Coal is quickly screened and has a large amount of solubility, so that only impurities are removed by alkane and then the double-sided car is used to determine the quality. The chromatographic separation of liquid is carried out under the condition of maintaining the relative separation degree R of the extraction agent and the sensitivity S/shape of the standard sample, and the quantification is carried out by the external standard rate area method or the peak yield method. 4. Reagents and materials
4.1 The solid filling liquid L or the solid filling liquid that can meet the requirements of separating the components in the coal tar with the extraction agent or the distillation agent. 4.2 Thermoplastic agent 6201 (c.14mm--0.13ma: chromogenic diatom + or any appropriate carrier. 4.3 Standard or other analytically pure separation agent.
4.2 Obtain analysis.
4. 5. Gas purity y% or more
4.6 alkane is mixed with a collector 1×1 (with a 1/2% alkane, or with undecane (standard gas) (analytical grade) or kerosene 170~1% is dried and washed with acid, more than 1m long, 3m×mn×mm diameter closed ring is installed inside, collector 1 (.- separation: must be deep chain separation and separation in the instrument), 4. glass sieve,
5 collector equipment
5.1 Gas phase negative evaluation instrument with the following technical characteristics, 5.1.1 Flame ionization detector: use nitrogen as the cutting gas: Lingpo Yingyuan 1×1\ extraction), approved by the National Economic and Trade Commission 200107-05 2020°-0° Actual shot
YB/T 507A2001
5.1.2 Automatic counting machine or automatic balance recording device. 5.1.3 Chromatographic type non-feedback network management, length · 2, internal price 1am. 5.2 Micro syringe: .1.
5.3 Syringe: 5rs..
3.4 ​​Glass evaporator.
5.5 Volumetric scale: diameter 35m, height 75mm, with a mouthpiece. 5.6 Glass stirring chamber.
5.7 Folding balance: 0.6F51 feet
5.8 Standard sieve .0.14uu.0.:3m.m
5.9 Adjustable heating device
5.10 Air compressor and air purification device: 6)u/ium/mit. 5.11 Room system: vacuum pad makes the day less than x10 "Fa: 6 test items
6.1 Preparation of free column
6.1.1 [Preparation of solid filling phase
According to the doctor, use just pine 1. as the reading (fixed liquid: the carrier is 20 "100, add the fixed liquid to the evaporated blood, and then change the head quickly and evenly in the whole stomach! Ventilation range: hold part of the drop rate of the heart, and dry it under the lamp until the air is described. The fixed liquid is used according to the properties of the fixed liquid, and the drop ratio is determined according to the method. 6.1.2 Filling operation
Place the color of the people's compensation (raise one end of the creation) on the cotton, and change the remaining space. On the other hand Connect one end to a full bucket, draw several times like the stationary phase, gently beat the color or stomach three times until the stationary phase no longer enters the stationary phase (for 3R): install the glass wool at both ends of the store and fill it evenly.
6.1.3 Aging conditions
According to the properties of the fixed solution, use the same aging conditions, taking the rigid comparison test 1 as an example: carrier gas flow rate 3m1./mim, aging at 155°C for 8h, aging at 20Ut.
6.2 Instrument components
6.2.1 Separation degree is not less than! .5.
6.2.2.%: 16cc~200C.
6.2.3 Vaporization, -2C.
6.2. 4 Grid humidity: 1. ~19
6.2.5 Carrier gas: Hydrogen flow rate: about Luin
62.5 Ground gas: volume 0ml
6.3 Preparation of standard samples and sample drugs
6.31 Preparation of standard samples Weigh the actual amount and the accuracy is .002 Weigh the quantitative amount of the light-weight sample and place it in a high-quality bottle: After the bottle is dried, the whole prepared external standard sample should be as close as possible to the content in the prepared sample in 6.32 (1.0%~2.0%).
6.3.2 Preparation of samples:
6.3 .2.1 The first time to take: slowly take the mixture and write coal oil collection parts. 5000? Set up a high-pressure cream and then use a fixed scale: only the amount of the agent in this amount, the whole heat is slightly heated and the temperature is controlled on the left side. After stirring for 2m~3, turn it down and cool it down. After the temperature is cooled, pour the liquid into a suitable high-pressure plate. Cover production:
E.3.2.2 The second time to take the average monthly ml. The company injected oil and took -1 lightly. The agent was injected into the commercial type weighing period containing the residual liquid. YB/I50782001
Fei The first time to take the force method for the first time. Take the first well and filter. 6.3.2.3 The second extraction is carried out in the same way as above. Take the third well and mix the two wells. Weigh the total amount of the extract to 0.002% of the total amount. Weigh the remaining amount of the extract in the container. 6.3.2.1 The remaining amount of the extract is transferred to the container. 6.4 The same as the fast chromatography method (5.2) is used for the determination. After that, use the laser to perform the same spectral conditions. 2..1..6..8 l.1.r.1.2.1.4.. external standard details 6.4.2 Take the tea sample and record the height by the comparison recorder and automatically calculate the surface area or height of the tea sample. Change the vertical area or height as the basis to draw the relationship between them and find out the range of linear relationship between the area or peak height. 6.4.3 Every time the color enhancement and color conditions are changed, a linear charging should be performed. The test steps are as follows:
7.1 Monitor the self-spectrometer to reach the instrument condition (.2) After the whole mechanism is determined, use the modified product to let the radiator rent 1 external standard sample: almost two times, by! The recorder records the chromatogram automatically and calculates the peak area or peak height: the average value is used as the external standard sample or peak height: see Figure 1.
YR/T507B-2001
7.2 Under the same chromatographic conditions, use a microsyringe to inject the sample prepared in (1, 3) in parallel, and record the chromatogram automatically and calculate the peak area or peak height automatically. The average value is used as the sample's peak height A or peak height. 1.3 The maximum difference between the two injections in the same row shall not exceed 1mur. 7.4 The concentration and content of the external standard sample and the sample must be within the range determined in (e.4). 8 Calculation of results
8.1 Qualitative method
In 6.2 is the qualitative reason for the spectrum obtained by using the standard reagent under the same chromatic conditions, and the determination rate is determined. 8.2 Determination method
Use the standard method
to understand and then! Second (single point instrument), calculate the content of moisture in coal tar by peak white formula (1) = C × AA Gx100/1a
root fresh self transport
to use the peak height (sheep point pull correct 1, with the peak height according to formula (2>1 to calculate the depth of the monitoring tea.: CX Ge X HeH G) nMadi
formula is small: - and the amount of external standard sample prepared is scattered, the parking space is (GeWww.bzxZ.net
area of ​​the scientific area liquid, the unit is area
coal tar sample volume, the unit is nominal;
the final area of ​​the prepared external standard sample, call high! Take the peak area of ​​the product, the bee
Mrd-the amount of moisture in the coal tar analysis sample is divided into? 9 experimental error
[same], laboratory error is not more than (, three and. 2)
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