Testing of edible agricultural and forestry products

This standard specifies the determination method for nitrite and nitrate in food. This standard is applicable to the determination of nitrite and nitrate in food. After precipitation of protein and removal of fat, the sample was extracted and purified using corresponding methods. Potassium hydroxide solution was used as the eluent and anion exchange column was used for separation; Conductance detector or UV detector detection. Qualitative analysis based on retention time and quantitative analysis using external standard method

Function of testing report:

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BAIJIAN testing process:

1. Telephone communication and confirmation of requirements

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3. Mail samples and arrange testing

4. Progress tracking and result feedback

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6. If urgent or priority processing is required

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