Ammonium secondary phosphate is used as a matrix modifier.
采用磷酸氢二铵作基体改进剂。
Methods: Using the matrix modifier, cadmium in the bean milk powder was determined with GFAAS.
方法：应用基体改进剂，用石墨炉原子吸收光谱法测定豆奶粉中的镉。
Methods L-Ascorbic acid is used as matrix modifier in the direct Zeeman GFAAS to determine trace Sn.
方法应用抗坏血酸作基体改进剂，横向塞曼石墨炉原子吸收光谱法直接测定浸泡液中痕量锡。
Aluminum in the wet-digested food was determined by tantalum-coated graphite tube-graphite furnace atomic absorption spectrometry with matrix modifier.
样品经湿法消解后，在基体改进剂作用下，采用涂钽石墨管、塞曼校正石墨炉原子吸收光谱法测定食品中铝含量。
Methods: Pretest samples using mixed acid, and magnesium was adopted as matrix modifier to determine by graphite furnace atomic absorption spectrometry.
方法：利用混合酸对样品进行消化处理，镁作为基体改进剂，石墨炉原子吸收光谱法测定。
Detailed discussion was conducted about the impact of factors such as ashing and automation temperature, ashing method of samples, and matrix modifier on the experimental results.
探讨了样品灰化方法及灰化原子化温度、基体改进剂对测定结果的影响。
Determination of trace Ba in water by graphite furnace atomic absorption spectrometry is studied. The optimum graphite tube, heating programs and matrix modifier are investigated.
通过一系列条件试验，研究了石墨炉原子吸收光谱法测定水中微量钡的石墨管类型、最佳加热程序和最佳基体改进剂等。
A method for the determination of gallium by the tantalum foil-lined graphite furnace atomic absorption spectrometry with vanadium and copper as mixed matrix modifier has been investigated.
提出用钒和铜混合基体改进剂衬钽管石墨炉原子吸收测定镓的方法。
A method for the determination of gallium by the tantalum foil-lined graphite furnace atomic absorption spectrometry with vanadium and copper as mixed matrix modifier has been investigated.
提出用钒和铜混合基体改进剂衬钽管石墨炉原子吸收测定镓的方法。
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