译：DZ/T 0459-2023 Determination of 15 volatile halogenated hydrocarbons in geochemical soil samples by headspace gas chromatography-mass spectrometry

译：DZ/T 0458-2023 Determination of six phthalate esters in geochemical soil samples by ultrasonic extraction-gas chromatography-mass spectrometry

译：DZ/T 0064.58-1993 The method of testing groundwater quality using the dihydroxybenzene-sulfonic acid spectrophotometry to determine nitrate is: "Nitrate determination using dihydroxybenzene-sulfonic acid spectrophotometry in groundwater quality testing"

译：DZ/T 0064.57-1993 The method for testing groundwater quality using Nessler's reagent colorimetric method to determine ammonium

译：DZ/T 0064.31-1993 Testing method for groundwater quality: APS superoxidedenaturing spectrophotometry for determination of manganese

译：DZ/T 0064.51-1993 Groundwater quality testing method: Ion chromatography to determine chloride, fluoride, bromide, nitrate, and sulfate

译：DZ/T 0064.67-1993 Groundwater quality testing method: Diaminodiphenylamine colorimetric method for determining sulfide

译：DZ/T 0064.42-1993 Groundwater quality testing method: Sensing coupled plasma atomic absorption spectrometer for determination of strontium and barium

译：DZ/T 0064.59-1993 Groundwater quality testing method: UV spectrophotometry for determination of nitrate

译：DZ/T 0064.61-1993 The method for testing groundwater quality using the phosphorus-biuret method for determining phosphate

译：DZ/T 0064.28-1993 Groundwater quality testing method: Ion chromatography to determine potassium, sodium, lithium, and ammonium