广东微量元素科学
廣東微量元素科學
엄동미량원소과학
GUANGDONG TRACE ELEMENTS SCIENCE
2015年
3期
11-14
,共4页
苏波波%王艺蓉%吴秀萍%连国军%曹建明
囌波波%王藝蓉%吳秀萍%連國軍%曹建明
소파파%왕예용%오수평%련국군%조건명
铜%分光光度法%5-Br-PADAP
銅%分光光度法%5-Br-PADAP
동%분광광도법%5-Br-PADAP
cooper%spectrophotometry%5-Br-PADAP
目的:建立了改良的5-Br-PADAP光度法测定水中铜离子含量。方法为在表面活性剂存在下,用2-(5-溴-2-吡啶偶氮)-5-二乙氨基酚(5-Br-PADAP)为显色剂测定水中铜离子含量。结果该法线性范围0~0.24 mg/L,平均回收率为99.9%,批内变异系数( CV)和批间变异系数分别为1.08%~2.62%和4.23%~4.57%,与原子吸收分光光度法比较具有良好的相关性,线性回归方程和相关系数分别为y=0.9834 x+0.0021,r=0.9991。结论用改良的5-Br-PADAP光度法测定水中铜离子浓度方法简便、灵敏可靠,适合推广应用。
目的:建立瞭改良的5-Br-PADAP光度法測定水中銅離子含量。方法為在錶麵活性劑存在下,用2-(5-溴-2-吡啶偶氮)-5-二乙氨基酚(5-Br-PADAP)為顯色劑測定水中銅離子含量。結果該法線性範圍0~0.24 mg/L,平均迴收率為99.9%,批內變異繫數( CV)和批間變異繫數分彆為1.08%~2.62%和4.23%~4.57%,與原子吸收分光光度法比較具有良好的相關性,線性迴歸方程和相關繫數分彆為y=0.9834 x+0.0021,r=0.9991。結論用改良的5-Br-PADAP光度法測定水中銅離子濃度方法簡便、靈敏可靠,適閤推廣應用。
목적:건립료개량적5-Br-PADAP광도법측정수중동리자함량。방법위재표면활성제존재하,용2-(5-추-2-필정우담)-5-이을안기분(5-Br-PADAP)위현색제측정수중동리자함량。결과해법선성범위0~0.24 mg/L,평균회수솔위99.9%,비내변이계수( CV)화비간변이계수분별위1.08%~2.62%화4.23%~4.57%,여원자흡수분광광도법비교구유량호적상관성,선성회귀방정화상관계수분별위y=0.9834 x+0.0021,r=0.9991。결론용개량적5-Br-PADAP광도법측정수중동리자농도방법간편、령민가고,괄합추엄응용。
Objective To estab1ish a proved spectrophotometric method for the ana1ysis of cooper in water. Methods The cooper in water was determined by the method suing 5 - Br - PADAP as a chromogenic agent in the presence of surfactant. Results The method was 1iner in the range of 0~0. 24 mg/L,the average rate of recovery was 99. 9%, the withinrun and between run CV was 1. 08% ~2. 62% and 4. 23% ~4. 57%,respective1y. Comparing this method( y) with the reference method (x),we obtained the regression equation:y=0. 983 4 x+0. 002 1,r=0. 999 1. Conclusion This method is simp1e,sensitive and suitab1e for app1ication.