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Industrial Acrylonitrile—Determination of Iron Content Graphite Furnace Atomic Absorption Method (1)

 Last Update: 2022-01-11
 Source: Internet
 Author: User

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1 Scope

This section specifies the graphite furnace atomic absorption method for determining the iron content of industrial acrylonitrile

This section applies to the determination of trace iron in acrylonitrile, with the determination range (0.

This section is not intended to explain all safety issues related to its use

2 Normative references

The clauses in the following documents become clauses of this part after being quoted in this part of GB/T7717

Preparation of GB/T602 Standard Solution for Determination of Impurities in Chemical Reagents

GB/T3723 General rules for the safety of sampling of industrial chemical products (GB/T3723-1999, idtISO3l65:1976)

GB/T6680 General Rules for Sampling of Liquid Chemical Products

GB/T6682 Analytical laboratory water specifications and test methods (GB/T5682-2008, ISO3696:1987, MOD)

GB/T8170 Numerical rounding rules and the expression and judgment of limit values

3 Method summary

Dilute the sample of acrylonitrile to be tested and ethanol according to the volume ratio of 1:4 and then inject the sample.

4 Reagents and materials

5 Instruments

6 sampling

Take samples according to the technical requirements specified in GB/T3723 and GB/T6680

Related links: Determination of p-hydroxyanisole content in acrylonitrile for industrial use.

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