2022-02-23Ainstru
NY/T85-1988-Determination of soil organic matter
2022-02-23Ainstru
GB/T 14550-93 Soil quality-Determination of BHC and DDT-Gas chromatographic method
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GB/T 17140-1997 Soil quality-Determination of lead and cadmium-KI-MIBK extraction-Flame atomic absorption spectrophotometry
2022-02-23Ainstru
GB/T 17141-1997 Soil Quality-Determination of Lead and Cadmium-Graphite Furnace Atomic Absorption Spectrophotometry
2022-02-23Ainstru
GB/T 17141-1997 Soil Quality-Determination of Lead and Cadmium-Graphite Furnace Atomic Absorption Spectrophotometry
2022-02-23Ainstru
HJ 717-2014 Soil quality-Determination of total nitrogen-Kjeldahl method
2022-02-23Ainstru
GB/T 17138-1997 Soil quality-Determination of copper and zinc-Flame atomic absorption spectrophotometry
2022-02-23Ainstru
GB/T 17137-1997 Soil Quality-Determination of Total Chromium-Flame Atomic Absorption Spectrophotometry
2022-02-23Ainstru
GB/T 22105.1-2008 Soil Quality-Determination of Total Mercury, Total Arsenic and Total Lead-Atomic Fluorescence Spectrometry Part 1 Determination of Total Arsenic in Soil
2022-02-23Ainstru