This standard specifies the determination method of bismuth content in antimony. This standard is applicable to the determination of bismuth content in antimony. Determination range: 0.0010% to 0.10%. GB/T 3253.6-2001 Chemical analysis method for antimony Determination of bismuth content GB/T3253.6-2001 Standard download decompression password: www.bzxz.net

KS 77.123. 60 National Standard of the People's Republic of China GB/T 3253. 7 ~-3253.6 2001 Methods for chemical analysis of antimony 2001- 07 -10 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Issued on 2001- 12 -01 1 Scope National Standard of the People's Republic of China Methods for chemical analysis of antimony Determining the content of bismuth This method is applicable to the determination of silver content in sulfuric acid using the 5.10% content method (B/T3253.62001). The sample is dissolved in water. In the presence of sulfur and at a temperature of 50°C, hydrogen peroxide is added to volatilize the sample and the salt is generated. The absorption spectrum shows that the absorbance at 223.1nm is longer than that of the original sample. The saturated impurities in the sample are not determined. 3 Reagents: 3.1 Acid (pl.1s8/m.): 3.2 Disodium (111), 3.3 Acid (pl.42R/mL): 3.4 Citric acid (1:1).
3.5 Acid 1-1)
3. Water: Mix salt (3.1 and 3.3) to prepare. 3.7 Aldehyde. Hydrogen hydride, isotopic product: 3.1 Hydrogen hydride, isotopic product: 4% 8) standard preparation. 3.8 Standard preparation rate reduction: Weigh 1.10 pure secret (net 9.00%> 250ml of dry ring, add) 1:1 commercial acid, heat slightly and dissolve until it is bright, wash with water and cool the ring wall, add 000ml. Volumetric flask! . Dilute with water to the scale: this part contains
3.9 Standard liquid transfer 53.ml. Standard isotopic acid (3.1) dilute to 50ml scale, standard. This is concentrated. Receiver
Original light promise, under the working conditions of the instrument, any cathode lamp that can meet the following indicators can be used: in a box similar to that of the tester, the concentration should not exceed 2ml. Density: Use the standard method to measure the absorbance, and the standard maximum concentration should not exceed 1% of the average mass light. The standard deviation of the absorption light of the liquid sample should not exceed 0.1% of the average light intensity of the liquid sample. Draw a linear curve: Divide the line into five equal sections according to the quality. The ratio of the absorbance of the highest section to the absorbance of the lowest section should be less than 0.7%. GB/T3253.6—2001 Appendix A (Appendix A of the specification! 5 Analysis steps 5.1 Test material Take the sample according to Table 1 and accurately measure the mass fraction of the sample. 6.21 0-0, 00E5 C
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Independently carry out the internal determination, collect its average groove estimate 5.2 to test
breeding test and sensitive empty household test.
5.3 Determine
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.u. 5.3. Place the sample in a 100a beaker with 10% water, cover the surface, add the new charge on a low-temperature electric furnace, transfer the sample to the surface, heat the sample at a low temperature, and cool the sample to room temperature. Heat until white smoke appears, add hydrochloric acid and oxygen, and heat the mixture until the smoke disappears. Cool the sample to room temperature (.2). Control the salt content: V/min. Then add less salt to the wall and heat it to a low temperature. Cool the whole room with
5.3.3 According to the current volume specified in Table 1, add water until the concentration reaches 223.1mr., and adjust the absorption to 223.1mr. with the standard solution. Adjust the value to zero with water, and observe the absorbance of the sample solution. Apply the water to the sample. The empty verification rate of the material is set to change the light, so as to change the non-false rust degree on the velvet. 5.4T is drawn by cutting
5.4. Take 0,1.6.2.53,4.0o,N.59.12.0o-6.50.20.mL standard policy and place them in a group-9mI. volume bottle, add 10)ml. Yield (3.2). Change the water screen to release the scale energy 5.2 fast month treasure gas-B times to increase, in the order of the love spectrum wavelength 31.1 days to adjust the car, create or system to the standard rate of change of light magnetic cloud series cup standard bay in the "zero" concentration of the liquid absorption pressure: with the shadow concentration purchase as the loss ring, the absorption should be half the standard to give the working curve 6 analysis results expression
direct formula (1 calculation of the quality of the single point teaching:
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The working conditions of the instrument are shown in Table A. Table A1
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