Method for quickly measuring mercury content of edible food packing material

Method for quickly measuring mercury content of edible food packing material

  • CN 105,606,550 A
  • Filed: 01/29/2016
  • Published: 05/25/2016
  • Est. Priority Date: 01/29/2016
  • Status: Active Application
First Claim
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1. a method for mercury content in Fast Measurement edible food packaging material, is characterized in that, the method concrete steps that Mercury Determination adopts are as follows:

  • (1) with high speed Universalpulverizer, sample is pulverized;

    (2) accurately take the specimen sample that 0.0500g pulverizes in advance, put into tweezer boat;

    (3) the tweezer boat that fills sample is put into instrument automatic sampler, measure;

    (4) instrument automatic sampler adopts direct injected-cold atomic absorption spectrometry, be weighed into Nie Zhouzhong by solid sample sample, be directed in instrument by automatic sampler, under the load of Oxygen Flow, sample is dried, thermal decomposition, product after thermal decomposition enters into catalysing tube catalytic reduction, mercury is reduced into mercury atom, mercuryvapour is collected and is carried out gold amalgam reaction by neatization pipe, high temperature is resolved afterwards, the mercury content finally parsing with Cold-Atom Absorption Spectrometry for Determining in 254nm wavelength place in absorption cell.

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