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SN/T 2945-2011: Determination of lead, cadmium, chromium, copper, manganese and zinc in rubber and rubber products. Inductively coupled plasma atomic emission spectrometric method
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SN/T 2945-2011	English	209	Add to Cart	3 days [Need to translate]	Determination of lead, cadmium, chromium, copper, manganese and zinc in rubber and rubber products. Inductively coupled plasma atomic emission spectrometric method

SN/T 2945-2011: Determination of lead, cadmium, chromium, copper, manganese and zinc in rubber and rubber products. Inductively coupled plasma atomic emission spectrometric method

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Determination of lead, cadmium, chromium, copper, manganese and zinc in rubber and rubber products.Inductively coupled plasma atomic emission spectrometric method People's Republic of China Entry-Exit Inspection and Quarantine Standards Rubber and its products of lead, cadmium, chromium, copper, Manganese, zinc Determination Inductively coupled plasma atomic emission spectrometry Determinationoflead, cadmium, chromium, copper, manganese Issued on. 2011-05-31 2011-12-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard is mainly drafted by. People's Republic of China Shandong CIQ. The main drafters of this standard. Xueqiu Hong, Li Jing, Ding Yulong, where sweet-scented osmanthus, hair Cai, Chen Shan, Jiang Zhigang. Rubber and its products of lead, cadmium, chromium, copper, Manganese, zinc Determination Inductively coupled plasma atomic emission spectrometry

1 Scope

This standard specifies the inductively coupled plasma atomic rubber and its products of lead, cadmium, chromium, copper, manganese, zinc emission spectrophotometric method. This standard applies to the determination of rubber and its products of lead, cadmium, chromium, copper, manganese and zinc in.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis GB/T 15340 natural, synthetic rubber raw sampling and sample preparation method

3 Method summary

The sample was placed in a microwave digestion using concentrated sulfuric acid carbonized, cooled, concentrated nitric acid and hydrogen peroxide digestion inductively coupled Plasma atomic emission spectrometer analysis of the emission intensity in the corresponding lead, cadmium, chromium, copper, manganese, zinc measured at a wavelength control standard curve To determine the concentration of each element in the sample and calculate the content of each element.

4 Reagents and materials

Unless otherwise stated, use only the gifted class pure reagents and in line with two water GB/T 6682 regulations. 4.1 sulfate (ρ = 1.84g/mL). 4.2 nitric acid (ρ = 1.40g/mL). 4.3 Hydrogen peroxide 30% (mass fraction). 4.4 hydrochloric acid (ρ = 1.18g/mL). 4.5 hydrochloride (12). hydrochloric acid (4.4) was diluted. 4.6 sulfuric acid (13). sulfuric acid (4.1) dilution. 4.7 lead standard solution (1000μg/mL). 4.8 Chromium standard solution (1000μg/mL). 4.9 Cadmium standard solution (1000μg/mL). 4.10 copper standard solution (1000μg/mL). 4.11 manganese standard solution (1000μg/mL). 4.12 Zinc standard solution (1000μg/mL). 4.13 mixed standard working solution (100μg/mL) Pipette respectively lead standard solution (4.7), the standard solution of chromium (4.8), cadmium standard solution (4.9), copper standard solution (4.10), manganese standard solution ...