漳州师范学院学报（自然科学版）
漳州師範學院學報（自然科學版）
장주사범학원학보（자연과학판）
JOURNAL OF ZHANGZHOU TEACHERS COLLEGE(NATURAL SCIENCE EDITION)
2012年
4期
37-43
,共7页
As(V)%核固红%NaIO4%Tween-80%增敏催化固体基质室温磷光法
As(V)%覈固紅%NaIO4%Tween-80%增敏催化固體基質室溫燐光法
As(V)%핵고홍%NaIO4%Tween-80%증민최화고체기질실온린광법
As (Ⅴ)%nuclear fast red%NaIO4%Tween-80%solid substrate room temperature phosphorimetry
本章基于Tween-80增敏催化NaIO4氧化核固红(R)的反应,导致体系的△Ip比无Tween-80时大6.2倍,据此提出了增敏催化NaIO4氧化核固红(R)室温磷光法测定As()Ⅴ的新方法.本方法的检出限(LD)为2.6×10–15g mL–1,线性范围(0.016~1.60fg spot–1),进行7次测定,其线性回归方程为△Ip=1.876+58.464 mAs()Ⅴ(fg spot–1),n=7,相关系数(r)为0.9990,表明本方法有较高的灵敏度、精密度.同时探讨了增敏催化NaIO4氧化R室温磷光法测定As()Ⅴ的反应机理.
本章基于Tween-80增敏催化NaIO4氧化覈固紅(R)的反應,導緻體繫的△Ip比無Tween-80時大6.2倍,據此提齣瞭增敏催化NaIO4氧化覈固紅(R)室溫燐光法測定As()Ⅴ的新方法.本方法的檢齣限(LD)為2.6×10–15g mL–1,線性範圍(0.016~1.60fg spot–1),進行7次測定,其線性迴歸方程為△Ip=1.876+58.464 mAs()Ⅴ(fg spot–1),n=7,相關繫數(r)為0.9990,錶明本方法有較高的靈敏度、精密度.同時探討瞭增敏催化NaIO4氧化R室溫燐光法測定As()Ⅴ的反應機理.
본장기우Tween-80증민최화NaIO4양화핵고홍(R)적반응,도치체계적△Ip비무Tween-80시대6.2배,거차제출료증민최화NaIO4양화핵고홍(R)실온린광법측정As()Ⅴ적신방법.본방법적검출한(LD)위2.6×10–15g mL–1,선성범위(0.016~1.60fg spot–1),진행7차측정,기선성회귀방정위△Ip=1.876+58.464 mAs()Ⅴ(fg spot–1),n=7,상관계수(r)위0.9990,표명본방법유교고적령민도、정밀도.동시탐토료증민최화NaIO4양화R실온린광법측정As()Ⅴ적반응궤리.
One new solid substrate room temperature phosphorimetry for the determination of As ( ) hasⅤbeen established based on the facts that Tween-80 could sensitize and catalyze the oxidation reaction between NaIO4 and nuclear fast red (R), making the Ip of the system being 6.2 times larger than that without Tween-80. The detection limit (LD) was 2.6×10-15g mL–1, wide linear range was 0.016-1.60 fg spot-1, the linear regression△equation was Ip=1.876+58.46 m As( ) ( fg spotⅤ -1, n=7) with correlation coefficient (r) of 0.9990 , indicating that this method has high sensitivity and precision. At the same time, the reaction mechanism of sensitizing and catalyzing the oxidation reaction between NaIO4 and R was also discussed.△
