以负载5-(2-羟基-5-硝基苯偶氮)-硫代若丹宁石墨化碳黑作吸附剂的固相萃取-火焰原子吸收光谱法测定金
이부재5-(2-간기-5-초기분우담)-류대약단저석묵화탄흑작흡부제적고상췌취-화염원자흡수광보법측정금
Study on determination of gold by solid phase extraction and flame atomic absorption spectrometry with graphitized carbon black loaded 5-(2-hydroxy-5-nitrophenylazo) thiorhodanine as sorbent
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