冶金分析
冶金分析
야금분석
METALLURGICAL ANALYSIS
2001年
1期
17-19
,共3页
锌%邻苯三酚红%过氧化氢%催化分光光度法
鋅%鄰苯三酚紅%過氧化氫%催化分光光度法
자%린분삼분홍%과양화경%최화분광광도법
研究了在稀H2SO4介质中，Zn2＋催化H2O2氧化邻苯三酚红的褪色反应。借此建立了测定痕量锌的催化光度法。方法的线性范围为0～0.50μg／25mL，检测限为2.8×10-11g Zn2＋／mL。该法的灵敏度高，重复性好，用于测定人发中痕量锌时，结果满意。
研究瞭在稀H2SO4介質中，Zn2＋催化H2O2氧化鄰苯三酚紅的褪色反應。藉此建立瞭測定痕量鋅的催化光度法。方法的線性範圍為0～0.50μg／25mL，檢測限為2.8×10-11g Zn2＋／mL。該法的靈敏度高，重複性好，用于測定人髮中痕量鋅時，結果滿意。
연구료재희H2SO4개질중，Zn2＋최화H2O2양화린분삼분홍적퇴색반응。차차건립료측정흔량자적최화광도법。방법적선성범위위0～0.50μg／25mL，검측한위2.8×10-11g Zn2＋／mL。해법적령민도고，중복성호，용우측정인발중흔량자시，결과만의。
In the medium of dilute H2SO4, the fading reaction of pyrogallol red is oxdized by H2O2, which can be catalyzed by Zn2+ has been studied. A new method for the catalytic spectrophotometric determination of trace zinc has been developed. The linear range is 0-0.50μg Zn2+/25mL and the detection limit is 2.8×10-11g/mL. The proposed method has high sensitivity and good repeatability and has been used to determine trace zinc in human hair with satisfactory results.
