岩矿测试
巖礦測試
암광측시
ROCK AND MINERAL ANALYSIS
2009年
4期
397-398
,共2页
亮绿SF%过氧化氢%催化动力学光度法%钒
亮綠SF%過氧化氫%催化動力學光度法%釩
량록SF%과양화경%최화동역학광도법%범
light green SF%hydroyen peroxide%catalytic kinetic speetrophotometry%vanadium
在硫酸介质中,痕量钒(Ⅴ)能明显催化过氧化氢氧化亮绿SF褪色,通过研究该反应的最佳实验条件和动力学参数,建立了测定痕量钒的新催化动力学光度法.该方法选择性强、操作简便、快速,其线性范围为0.0～40ng/mL,检出限为5.2 ng/L.方法用于水样及茶叶中痕量钒(Ⅴ)的测定,结果满意.
在硫痠介質中,痕量釩(Ⅴ)能明顯催化過氧化氫氧化亮綠SF褪色,通過研究該反應的最佳實驗條件和動力學參數,建立瞭測定痕量釩的新催化動力學光度法.該方法選擇性彊、操作簡便、快速,其線性範圍為0.0～40ng/mL,檢齣限為5.2 ng/L.方法用于水樣及茶葉中痕量釩(Ⅴ)的測定,結果滿意.
재류산개질중,흔량범(Ⅴ)능명현최화과양화경양화량록SF퇴색,통과연구해반응적최가실험조건화동역학삼수,건립료측정흔량범적신최화동역학광도법.해방법선택성강、조작간편、쾌속,기선성범위위0.0～40ng/mL,검출한위5.2 ng/L.방법용우수양급다협중흔량범(Ⅴ)적측정,결과만의.
Based on the catalytic effect of vanadium on the discoloring reaction of light green SF oxidized by H2 02 in medium of sulfuric acid, a new method for the determination of vanadium(Ⅴ) was proposed. The optimum determination condition and kinetic parameters have been investigated. The detection limit is 5.2 ng/L with linear range of 0.0 ～40 ng/mL for vanadium(Ⅴ). The method has been applied to the determination of trace vanadium in water and tea samples with satisfactory results.
