新疆师范大学学报:自然科学版
新疆師範大學學報:自然科學版
신강사범대학학보:자연과학판
Journal of Xinjiang Normal University(Natural Sciences Edition)
2011年
2期
29-31
,共3页
龚兰新%高素云%龚艳
龔蘭新%高素雲%龔豔
공란신%고소운%공염
褪色光度法%溴酚蓝%溴酸根
褪色光度法%溴酚藍%溴痠根
퇴색광도법%추분람%추산근
Discoloring spectrophototometry%Bromophenol%Bromate
基于硫酸介质中溴酸根氧化溴酚蓝褪色,建立了测定微量溴酸根的新的褪色光度分析法。在最大吸收波长436nm及选定的实验条件下,溴酸根浓度在0.15~3.8g/mL范围内符合比尔定律,该方法用于化学试剂中痕量溴酸根的测定,结果满意。
基于硫痠介質中溴痠根氧化溴酚藍褪色,建立瞭測定微量溴痠根的新的褪色光度分析法。在最大吸收波長436nm及選定的實驗條件下,溴痠根濃度在0.15~3.8g/mL範圍內符閤比爾定律,該方法用于化學試劑中痕量溴痠根的測定,結果滿意。
기우류산개질중추산근양화추분람퇴색,건립료측정미량추산근적신적퇴색광도분석법。재최대흡수파장436nm급선정적실험조건하,추산근농도재0.15~3.8g/mL범위내부합비이정률,해방법용우화학시제중흔량추산근적측정,결과만의。
A new photometric method for determining micro amount of bromated ion was developed and was based on the oxidation of hromphenol blue in a sulphuric acid medium. Beer's law was obeyed over the range of 0.15-3.8 ug/mL bromated ion with the absorbance measured at 625 nm. The method was quick and convenient, and was applied to the determination of micro amount of bromated in chemical reagents with satisfied results.