中国地方病学杂志
中國地方病學雜誌
중국지방병학잡지
CHINESE JOURNAL OF ENDEMIOLOGY
2009年
6期
677-679
,共3页
荧光光度测定法%砷%结果评价
熒光光度測定法%砷%結果評價
형광광도측정법%신%결과평개
Fluorophotometry%Arsenic%Outcome assessment
目的 比较直线拟合与曲线拟合计算AFS-230E型原子荧光光度计检测水砷结果的准确度.方法 使用AFS-230E型原子荧光光度计,分别检测标准系列各样品砷的荧光强度值,对荧光强度值和相应的标准系列水砷剂量值用直线和曲线拟合,分别用各自的拟合方程和各样本的荧光强度值计算出各自的拟合剂量,分析拟合结果.结果 水砷在0.1～5.0μg/L时,直线拟合的总体误差值为7.97%,曲线为3.67%,直线和曲线拟合计算结果比较,差异无统计学意义(t=1.66,P>0.05);水砷在1.0～20.0μg/L时,直线拟合的总体误差值为9.26%.曲线为2.44%,直线和曲线拟合计算结果比较,差异有统计学意义(t=2.63,P<0.05).结论 水砷在0.1～5.0μg/L时,可直接使用仪器程序默认的直线拟合;水砷在1.0～20.0μg/L时,应用曲线拟合,其检测结果较直线拟合准确.
目的 比較直線擬閤與麯線擬閤計算AFS-230E型原子熒光光度計檢測水砷結果的準確度.方法 使用AFS-230E型原子熒光光度計,分彆檢測標準繫列各樣品砷的熒光彊度值,對熒光彊度值和相應的標準繫列水砷劑量值用直線和麯線擬閤,分彆用各自的擬閤方程和各樣本的熒光彊度值計算齣各自的擬閤劑量,分析擬閤結果.結果 水砷在0.1～5.0μg/L時,直線擬閤的總體誤差值為7.97%,麯線為3.67%,直線和麯線擬閤計算結果比較,差異無統計學意義(t=1.66,P>0.05);水砷在1.0～20.0μg/L時,直線擬閤的總體誤差值為9.26%.麯線為2.44%,直線和麯線擬閤計算結果比較,差異有統計學意義(t=2.63,P<0.05).結論 水砷在0.1～5.0μg/L時,可直接使用儀器程序默認的直線擬閤;水砷在1.0～20.0μg/L時,應用麯線擬閤,其檢測結果較直線擬閤準確.
목적 비교직선의합여곡선의합계산AFS-230E형원자형광광도계검측수신결과적준학도.방법 사용AFS-230E형원자형광광도계,분별검측표준계렬각양품신적형광강도치,대형광강도치화상응적표준계렬수신제량치용직선화곡선의합,분별용각자적의합방정화각양본적형광강도치계산출각자적의합제량,분석의합결과.결과 수신재0.1～5.0μg/L시,직선의합적총체오차치위7.97%,곡선위3.67%,직선화곡선의합계산결과비교,차이무통계학의의(t=1.66,P>0.05);수신재1.0～20.0μg/L시,직선의합적총체오차치위9.26%.곡선위2.44%,직선화곡선의합계산결과비교,차이유통계학의의(t=2.63,P<0.05).결론 수신재0.1～5.0μg/L시,가직접사용의기정서묵인적직선의합;수신재1.0～20.0μg/L시,응용곡선의합,기검측결과교직선의합준학.
Objective To compare the accuracies of water arsenic testing of AFS-230E-type atomic fluorescence photometer by linear and quadratic curve fitting. Methods AFS-230E-type atomic fluorescence photometer was used to detect the fluorescence intensity of the standard samples. Two series of data, the fluorescence intensity and the standard concentration were fitted with a straight line and a curve. Their fitting concentration was calculated with their samples' fitting equation and fluorescence intensity respectively. Results When the water arsenic concentration was in the range of 0.1-5.0 μg/L, the total error value was 7.79% in linear fitting, 3.67 % in curve fitting, and the calculations were of no significant differences with the linear and curve fitting(t=1.664, P > 0.05). When the water arsenic concentration was in the range of 1-20 μg/L,the total error value was 9.26% percent in linear fitting, 2.44% in curve fitting, and the calculation results were of significant difference with the linear and curve fitting(t=2.63, P < 0.05). Conclusions When the water arsenic concentration in the range of 0.1-5.0 μg/L, the linear fitting which is default in the instrument can be used directly. When the water arsenic concentration in the range of 1.0-20.0 μg/L, the curve fitting should be used because its test results are more accurately compared with the linear fitting.
