SN/T 2765.2-2013Determination of arsenic, chromium, cadimium, lead and mercury in iron ores. Inductively coupled plasma mass spectrometry(ICP-MS) (English PDF)

Foreword

This section SN/T Section 22765 of.

This section drafted in accordance with GB/T 1.1-2009 given rules.

This section proposed and managed by the National Certification and Accreditation Administration Committee.

1 Scope

This section SN/T 2765 specifies the inductively coupled plasma iron ore of arsenic, chromium, cadmium, lead and mercury - mass spectrometry.

This section applies to arsenic, chromium, cadmium, lead and mercury in iron ore measured, the measurement range of each element in Table 1.

Table 1 measurement range of each element

Element Measuring range/(µg/kg) element Measuring range/(µg/kg) Arsenic 2.53 0.40 3200 to 1900 lead Chromium 1.83 6.27 ~ 190 ~ 2500 Mercury Cadmium 0.15 ~ 0.55

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 6682-2008 Analysis GB/T 10322.1 iron ore sampling and sample preparation methods

3 Method summary

Samples using high temperature pressure microwave digestion process was diluted to volume with water, using the internal standard line, directly inductively coupled plasma Body - mass spectrometry (ICP-MS) was measured.

4 Reagents and materials