分析科学学报
分析科學學報
분석과학학보
JOURNAL OF ANALYTICAL SCIENCE
2010年
2期
223-225
,共3页
杜容山%罗光富%潘家荣%曾德锋%黄应平
杜容山%囉光富%潘傢榮%曾德鋒%黃應平
두용산%라광부%반가영%증덕봉%황응평
2,3,7-三羟基-9-(3,5-二氯)水杨基荧光酮%分光光度法%锰
2,3,7-三羥基-9-(3,5-二氯)水楊基熒光酮%分光光度法%錳
2,3,7-삼간기-9-(3,5-이록)수양기형광동%분광광도법%맹
2,3,7-Trihydroxy-9-(3,5-dichloro) salicylfluorone%Manganese%Spectrophotometry
研究了在阳离子表面活性剂溴化十六烷基三甲胺(CTAB)存在下,2,3,7-三羟基-9-(3,5-二氯)水杨基荧光酮(DCSAF)与Mn~(2+)的显色反应和光谱性能.结果表明,在pH=9.07的Na_2HPO_4-KH_2PO_4缓冲溶液中,Mn~(2+)与DCSAF形成摩尔比为1:2的三元配合物.该配合物最大吸收峰位于550 nm处,表观摩尔吸光系数ε=1.92×10~5 L·mol~(-1)·cm~(-1),Mn~(2+)含量在0～0.70 μg/5mL范围内符合比耳定律.建立的分析方法用于钢样中微量Mn~(2+)的测定,结果令人满意.
研究瞭在暘離子錶麵活性劑溴化十六烷基三甲胺(CTAB)存在下,2,3,7-三羥基-9-(3,5-二氯)水楊基熒光酮(DCSAF)與Mn~(2+)的顯色反應和光譜性能.結果錶明,在pH=9.07的Na_2HPO_4-KH_2PO_4緩遲溶液中,Mn~(2+)與DCSAF形成摩爾比為1:2的三元配閤物.該配閤物最大吸收峰位于550 nm處,錶觀摩爾吸光繫數ε=1.92×10~5 L·mol~(-1)·cm~(-1),Mn~(2+)含量在0～0.70 μg/5mL範圍內符閤比耳定律.建立的分析方法用于鋼樣中微量Mn~(2+)的測定,結果令人滿意.
연구료재양리자표면활성제추화십륙완기삼갑알(CTAB)존재하,2,3,7-삼간기-9-(3,5-이록)수양기형광동(DCSAF)여Mn~(2+)적현색반응화광보성능.결과표명,재pH=9.07적Na_2HPO_4-KH_2PO_4완충용액중,Mn~(2+)여DCSAF형성마이비위1:2적삼원배합물.해배합물최대흡수봉위우550 nm처,표관마이흡광계수ε=1.92×10~5 L·mol~(-1)·cm~(-1),Mn~(2+)함량재0～0.70 μg/5mL범위내부합비이정률.건립적분석방법용우강양중미량Mn~(2+)적측정,결과령인만의.
In pH=9.07(Na_2HPO_4-KH_2PO_4)buffer solution and the presence of cetyltrimethylammonium (CTAB), the color reaction and photometric property for 2,3,7-trihydroxy-9-(3,5-dichloro) salicylfluorone (DCSAF) with manganese(Ⅱ) were the maximum absorption wavelength of the red complex was 550 nm, and the apparent molar absorptivity was 1.92×10~5 L·mol~(-1·cm~(-1). Beer's law was obeyed in the range of 0～0.70 μg/5mL manganese(Ⅱ). The method was applied in the determination of manganese in steel samples with satisfied results.
