Standard No.:	DB46/T 639-2024
English Name:	Soil and sediment-Determination of Cr(VI)-Alkaline digestion-Ion chromatography with post-column method
Chinese Name:	土壤和沉积物 六价铬的测定 碱溶液提取柱后衍生离子色谱法
Chinese Classification:	Z10    Environmental pollutant monitoring methods
Professional Classification:	DB    Provincial Standard
ICS Classification:	13.080.99 13.080.99    Other standards related to soil quality 13.080.99
Issued by:	Hainan Provincial Administration for Market Regulation
Status:	valid
Language:	English
File Format:	PDF

本标准规定了测定土壤和沉积物中六价铬的碱溶液提取-柱后衍生离子色谱法。
本标准适用于土壤和沉积物中六价铬的测定。
当土壤和沉积物取样量为 5.0 g，定容体积为 100 ml，提取液进样体积为 100 μl 时，本标准测定的六价铬的方法检出限为 0.008 mg/kg，测定下限为 0.032 mg/kg。