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GB/T 14353.21-2019 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 14353.21-2019: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 21: Determination of arsenic content -- Hydride generation atomic fluorescence spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 14353.21-2019	199	Add to Cart	3 days	Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 21: Determination of arsenic content -- Hydride generation atomic fluorescence spectrometry	Valid

Similar standards

SN/T 2763.6 GB/T 14353.18 SN/T 3365 GB/T 14353.20 GB/T 14353.19 GB/T 14353.14

Basic data

Standard ID: GB/T 14353.21-2019 (GB/T14353.21-2019)
Description (Translated English): Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 21: Determination of arsenic content -- Hydride generation atomic fluorescence spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D40
Classification of International Standard: 73.060
Word Count Estimation: 10,192
Date of Issue: 2019-10-18
Date of Implementation: 2020-05-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 14353.21-2019: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 21: Determination of arsenic content -- Hydride generation atomic fluorescence spectrometry

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods for chemical analysis of copper ores, lead ores and zinc ores--Part 21. Determination of arsenic content--Hydride generation atomic fluorescence spectrometry ICS 73.060 D40 National Standards of People's Republic of China Copper ore, lead ore and zinc ore chemical analysis methods Part 21. Determination of arsenic Hydride generation atomic fluorescence spectrometry Part 21.Determinationofarseniccontent-Hydridegenerationatomic Published on.2019-10-18 2020-05-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

GB/T 14353 "Chemical Analysis Methods for Copper Ore, Lead Ore and Zinc Ore" is divided into 21 parts. --- Part 1. Determination of copper content; --- Part 2. Determination of lead content; --- Part 3. Determination of zinc content; --- Part 4. Determination of cadmium content; ---Part 5. Determination of nickel content; ---Part 6. Determination of cobalt content; ---Part 7. Determination of arsenic content; --- Part 8. Determination of volume; ---Part 9. Determination of molybdenum content; --- Part 10. Determination of tungsten content; --- Part 11. Determination of silver content; --- Part 12. Determination of sulfur content; --- Part 13. Determination of the amount of gallium, indium, niobium, tungsten and molybdenum; --- Part 14. Determination of enthalpy; ---Part 15. Determination of selenium content; ---Part 16. Determination of enthalpy; --- Part 17. Determination of enthalpy; ---Part 18. Determination of copper, lead, zinc, cobalt and nickel; ---Part 19. Determination of tin content by hydride generation atomic fluorescence spectrometry; --- Part 20. Determination of enthalpy inductively coupled plasma mass spectrometry; --- Part 21. Determination of arsenic content by hydride generation atomic fluorescence spectrometry. This part is the 21st part of GB/T 14353. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed by the Ministry of Natural Resources of the People's Republic of China This part is under the jurisdiction of the National Land Resources Standardization Technical Committee (SAC/TC93). This section drafted by. Shaanxi Institute of Geology and Mineral Resources Research Institute Co., Ltd. The main drafters of this section. Xiong Ying, Dong Yani, Ruo Ruohui, Liu Xiaoyan, Cui Changzheng. Copper ore, lead ore and zinc ore chemical analysis methods Part 21. Determination of arsenic Hydride generation atomic fluorescence spectrometry Cautions - Personnel using this section should have hands-on experience in formal laboratory work. This section does not point out all possible security questions. question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations.

1 Scope

This part of GB/T 14353 specifies arsenic atomic fluorescence spectrometry for the determination of arsenic in copper ore, lead ore and zinc ore. content. This section applies to the determination of arsenic content in copper ore, lead ore and zinc ore. Method detection limit. 1.5 μg/g. Measuring range. 5 μg/g ~ 1500 μg/g.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods GB/T 14505 General rules and general rules for chemical analysis of rocks and ores

3 Principle

The sample is dissolved in nitric acid, potassium chlorate and hydrochloric acid, sulfuric acid is added, and lead is precipitated and separated. In the ammonia solution, iron hydroxide is used as a carrier, and arsenic and Fe(OH)3 coprecipitates and separates copper and zinc. The arsenic-containing precipitate is dissolved in hydrochloric acid, and thiourea-ascorbic acid is added to mask the residual interference in the solution. Sub, and reduce pentavalent arsenic to trivalent. In a hydrochloric acid medium, arsenic reacts with potassium borohydride to form arsine, which is loaded into the quartz atomizer by argon. Decomposed into atomic arsenic, high-intensity hollow cathode lamp with arsenic as "excitation" light source, arsenic atom emits fluorescence, and the fluorescence intensity of arsenic is certain The range is proportional to the concentration of arsenic. Determination of the fluorescence intensity of arsenic by atomic fluorescence spectrometry, calculation of samples based on atomic fluorescence intensity The arsenic content in the medium.

4 reagents or materials

This section uses analytically pure reagents and secondary water in accordance with GB/T 6682, unless otherwise stated. 4.1 Potassium chlorate. analytically pure. 4.2 Hydrochloric acid (ρ=1.19g/mL). excellent grade pure. 4.3 Nitric acid (ρ=1.42g/mL). excellent grade pure. 4.4 Ammonia water (ρ=0.90g/mL). 4.5 Hydrochloric acid solution (1 9). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 14353.21-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 14353.21-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 14353.21-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 14353.21-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.