GB/T 28722-2012 English PDFUS$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 28722-2012: Determination of iron and lead in amino acids -- Atomic absorption spectrometry Status: Valid
Basic dataStandard ID: GB/T 28722-2012 (GB/T28722-2012)Description (Translated English): Determination of iron and lead in amino acids -- Atomic absorption spectrometry Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G85 Classification of International Standard: 71.040.50 Word Count Estimation: 8,823 Quoted Standard: GB/T 6682 Regulation (derived from): National Standards Bulletin 2012 No. 24 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 determination by atomic absorption spectrometry amino acid, iron and lead the way. This standard applies to amino acids in the determination of iron and lead. Graphite furnace atomic absorption spectrometry determination of lea GB/T 28722-2012: Determination of iron and lead in amino acids -- Atomic absorption 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.ICS71.040.50 G85 National Standards of People's Republic of China Determination of iron and lead acid Atomic Absorption Spectrometry Issued on. 2013-02-01 2012-09-03 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard rule according to GB/T 1.1-2009 given draft. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee Chemistry (SAC/TC63) centralized. This standard was drafted. CIQ Hubei, Zhejiang Chemical Research Institute Co., Ltd. The main drafters of this standard. Cui Hairong, Guo Jian Fang Road, wind Yang, DU, about Ling Tao. Determination of iron and lead acid Atomic Absorption Spectrometry1 ScopeThis standard specifies the method for the determination of amino acids in iron and lead by atomic absorption spectrometry. This standard applies to the determination of amino acids in the iron and lead by graphite furnace atomic absorption spectrometry of lead measured detection limit of 0.005mg/kg;. Fire Flame atomic absorption spectrometry of lead measured detection limit of 0.1mg/kg, iron measured detection limit of 2mg/kg.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated edition applies to this article Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis3 Lead graphite furnace atomic absorption spectrometry3.1 Principle The sample was ashing or acid digestion after injection graphite furnace atomic absorption spectrophotometer, the light atoms of lead emitted by the light source, the absorption Its 283.3nm resonance line, in a certain concentration range, the absorption value is proportional to the amount of lead, compared with standard series quantitation. 3.2 Reagents 3.2.1 Unless otherwise specified, all reagents superior grade pure water GB/T 6682 provisions of the water level. 3.2.2 nitrate. 3.2.3 perchloric acid. 3.2.4 nitric acid solution (0.5mol/L) Take 3.2mL nitric acid (3.2.2) was added 50mL of water and diluted to 100mL. 3.2.5 nitric acid solution (1mol/L) Take 6.4mL nitric acid was added 50mL of water and diluted to 100mL. 3.2.6 solution of ammonium dihydrogen phosphate (20g/L) Weigh 2.0g of ammonium dihydrogen phosphate was dissolved in water and diluted to 100mL. 3.2.7 mixed acid [nitric perchloric acid (41)] Take four parts of nitric acid was mixed with 1 part of perchlorate. 3.2.8 Lead standard solution (1mg/mL) Accurately weigh 1.598g lead nitrate, plus 10mL0.5mol/L nitric acid solution dissolved quantitatively transferred into a 1000mL volumetric flask and set Capacity. This is equivalent to 1mg solution 1mL lead. Store in a polyethylene bottle, 4 ℃ preservation. 3.2.9 Lead standard solution Accurate Pipette 1.00mL lead standard stock solution in 1000mL volumetric flask to volume with water, shake well and reserve. Pipette diluted respectively Solution 0mL, 1.00mL, 2.00mL, 4.00mL, 6.00mL, 8.00mL in 100mL flask, add nitric acid (0.5mol/L) ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 28722-2012_English be delivered?Answer: Upon your order, we will start to translate GB/T 28722-2012_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 28722-2012_English with my colleagues?Answer: Yes. 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