GB/T 23372-2009 English PDF

US$239.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 23372-2009: Determination of inorganic-arsenic in foods -- Liquid chromatography-inductive coupled plasma mass spectrometer
Status: Obsolete

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23372-2009	239	Add to Cart	3 days	Determination of inorganic-arsenic in foods -- Liquid chromatography-inductive coupled plasma mass spectrometer	Obsolete

Similar standards

GB/T 23504   GB/T 22507   GB/T 22460   GB/T 23379   GB/T 23380   GB/T 23376   

Basic data

Standard ID: GB/T 23372-2009 (GB/T23372-2009)
Description (Translated English): Determination of inorganic-arsenic in foods -- Liquid chromatography-inductive coupled plasma mass spectrometer
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 6,663
Date of Issue: 2009-03-16
Date of Implementation: 2009-05-01
Regulation (derived from): National Standard Approval Announcement 2009 No.3 (Total No.143)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the liquid chromatography and inductively coupled plasma mass food inorganic arsenic [ arsenite As (��) and arsenate As (V)] method for the determination. This standard applies to the determination of inorganic arsenic in food. This standard method detection limit of As (��) 0. 002mg/kg, As (V) 0. 004mg/kg.

GB/T 23372-2009: Determination of inorganic-arsenic in foods -- Liquid chromatography-inductive coupled plasma mass spectrometer

---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.
Determination of inorganic-arsenic in foods. Liquid chromatography-inductive coupled plasma mass spectrometer ICS 67.050 X04 National Standards of People's Republic of China Determination of inorganic arsenic Liquid Chromatography - Inductively Coupled Plasma Mass Spectrometry Posted 2009-03-16 2009-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Appendix A of this standard is an informative annex. This standard is proposed and managed by China National Institute of Standardization. This standard was drafted. the National Food Quality Supervision, Inspection and Safety Center. The main drafters of this standard. buildings, Chen Yuhong, Chen, Yang Yanli, Zhou come to know Africa, Wang Hao, Yang Hongmei. Determination of inorganic arsenic Liquid Chromatography - Inductively Coupled Plasma Mass Spectrometry

1 Scope

This standard specifies the liquid chromatography and inductively coupled plasma mass spectrometry of inorganic arsenic in food [arsenite As (Ⅲ) and arsenate As (Ⅴ)] method. This standard applies to the determination of inorganic arsenic in food. The standard method detection limit of As (Ⅲ) 0.002mg/kg, As (Ⅴ) 0.004mg/kg.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD) Principle 3 Samples of inorganic arsenic was extracted and purified by liquid chromatography of various forms of arsenic were separated, and directly into the inductively coupled plasma Daughters mass spectrometer, the sample is compared with the standard, external standard.

4 Reagents

Unless otherwise indicated, the reagents used in the analysis are excellent pure water to GB/T 6682-2008 specified level of water. 4.1 3% (volume fraction) acetic acid solution. Take 3.0mL acetic put the right amount of water, then diluted to 100mL. 4.2 0.15% (volume fraction) solution of acetic acid. acetic acid 0.15mL take place the right amount of water, then diluted to 100mL. 4.3 30% hydrogen peroxide. 4.4 ethanol. 4.5 Mobile phase (A phase) 4.5.1 2mmol/L sodium dihydrogen phosphate. Accurately weigh 0.3120g sodium dihydrogen phosphate water volume to 1000mL. 4.5.2 10mmol/L anhydrous sodium acetate. Weigh accurately 0.8203g anhydrous sodium acetate water volume to 1000mL. 4.5.3 0.2mmol/L disodium edetate. Weigh accurately 0.0746g disodium edetate water volume to 1000mL. 4.5.4 3mmol/L Potassium nitrate. Accurately weigh 0.3030g potassium nitrate water volume to 1000mL. 4.5.5 4% aqueous sodium hydroxide solution. Weigh 4g sodium hydroxide water volume to 100mL. 4.6 standard stock solution. arsenate, arsenite, arsenic betaine, a methyl arsenic, dimethyl arsenic (hereinafter referred to five kinds of arsenic), each standard stock Concentration liquid was 5μg/mL, stored at 4 ℃ refrigerator for a period of three months. 4.7 five kinds of arsenic standard working solution. draw five kinds of arsenic standard stock solution (4.6) 2.0mL to 10mL volumetric flask, equipped with mixed standard Working solution concentration of 1.0mg/L. Pipette working standard solutions 0.0,0.1,0.2,0.5,1.0mL 100mL flask to a set of , A 0.15% acetic acid solution (4.2) to the mark, to give a single-element concentrations 0.0,0.001,0.002,0.005,0.010μg/mL The mixed standard solution. When using the existing service. 4.8 filter. 0.45μm, the water phase. 4.9 poly-divinylbenzene polymer reversed phase packing (or equivalent degreasing column). 250mg, 3mL. Before using the column using methanol and 5mL ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 23372-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 23372-2009_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 23372-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 23372-2009_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.