GB/T 34764-2017Determination of copper,iron,zinc,manganese,boron and molybdenum content in fertilizers - Inductively coupled plasma optical emission spectroscopy (English PDF)

1 Scope

This standard specifies the method of determination of copper, iron, manganese, zinc, boron, molybdenum content of fertilizer by plasma emission spectrometry (ICP).

This standard applies to copper, iron, manganese, zinc, boron, molybdenum content <= 1% of the fertilizer.

The detection limit of this standard method of copper 0.003µg/mL, iron 0.03µg/mL, manganese 0.004µg/mL, zinc 0.03µg/mL, boron

0.05 µg/mL, molybdenum 0.007 µg/mL.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 6682 analytical laboratory water specifications and test methods

Determination of copper, iron, manganese, zinc, boron and molybdenum content in compound fertilizers GB/T 14540-2003

GB/T 17767.3-2010 Determination of organic - inorganic compound fertilizers - Part 3. Total potassium content

3 principle

Copper, iron, manganese, zinc, boron, molybdenum in sample solution atomize in ICP light source and excite to high energy state,

To the ground state has a characteristic wavelength of electromagnetic radiation, radiation intensity and atomic concentration is proportional to.

4 Reagents and materials

Warning --- personnel using this standard should have formal laboratory work experience. This standard does not indicate all possible safety issues question. It is the user's responsibility to take appropriate safety and health measures and to ensure compliance with the requirements of the relevant state laws and regulations.