陕西科技大学学报(自然科学版)
陝西科技大學學報(自然科學版)
협서과기대학학보(자연과학판)
JOURNAL OF SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY
2013年
6期
40-44
,共5页
范春辉%贺磊%王家宏%马宏瑞%唐志刚%薛喜东
範春輝%賀磊%王傢宏%馬宏瑞%唐誌剛%薛喜東
범춘휘%하뢰%왕가굉%마굉서%당지강%설희동
氯吡硫磷%紫外分光光度法%旱田黄土%气相色谱法
氯吡硫燐%紫外分光光度法%旱田黃土%氣相色譜法
록필류린%자외분광광도법%한전황토%기상색보법
chlorpyrifos%ultraviolet spectrophotometry%arid loess%gas chromatography
以模拟氯吡硫磷污染旱田黄土为研究对象,尝试建立相应的氯吡硫磷紫外检测法,并与气相色谱法进行结果对比,采用超声辅助-机械振荡法强化氯吡硫磷提取效果并进行样品实测.研究发现:紫外分光光度法测定氯吡硫磷的标准曲线为 y=0.0092 x-0.0026,相关系数r为0.9998,紫外法和气相法的精密度、准确度等参数接近.在实验条件下,超声辅助-机械振荡法能显著提高黄土氯吡硫磷的提取效果,回收率为50.20%~61.70%,认为黄土组分(尤其是有机组分)的吸附效应是导致回收率结果偏低的重要因素.紫外分光光度法可以用于旱田黄土氯吡硫磷的检测分析.
以模擬氯吡硫燐汙染旱田黃土為研究對象,嘗試建立相應的氯吡硫燐紫外檢測法,併與氣相色譜法進行結果對比,採用超聲輔助-機械振盪法彊化氯吡硫燐提取效果併進行樣品實測.研究髮現:紫外分光光度法測定氯吡硫燐的標準麯線為 y=0.0092 x-0.0026,相關繫數r為0.9998,紫外法和氣相法的精密度、準確度等參數接近.在實驗條件下,超聲輔助-機械振盪法能顯著提高黃土氯吡硫燐的提取效果,迴收率為50.20%~61.70%,認為黃土組分(尤其是有機組分)的吸附效應是導緻迴收率結果偏低的重要因素.紫外分光光度法可以用于旱田黃土氯吡硫燐的檢測分析.
이모의록필류린오염한전황토위연구대상,상시건립상응적록필류린자외검측법,병여기상색보법진행결과대비,채용초성보조-궤계진탕법강화록필류린제취효과병진행양품실측.연구발현:자외분광광도법측정록필류린적표준곡선위 y=0.0092 x-0.0026,상관계수r위0.9998,자외법화기상법적정밀도、준학도등삼수접근.재실험조건하,초성보조-궤계진탕법능현저제고황토록필류린적제취효과,회수솔위50.20%~61.70%,인위황토조분(우기시유궤조분)적흡부효응시도치회수솔결과편저적중요인소.자외분광광도법가이용우한전황토록필류린적검측분석.
The ultraviolet spectrophotometry (UV) was established to reveal the chlorpyrifos concentration ,the results achieved by UV spectrophotometry and gas chromatography (GC) were analyzed ,and the concentration of chlorpyrifos ,extracted from arid loess with ultra-sonic-assisted treatment ,was investigated with UV spectrophotometry .The results showed:the standard curve of chlorpyrifos by UV spectrophotometry is y=0 .009 2 x-0 .002 6 with coefficient of r 0 .999 8 .The experimental parameters of precision and accuracy are similar by UV and GC methods .The ultrasonic-assisted treatment is effective for the extraction process of chlorpyrifos in arid loess (recovery rates vary from 50 .20% to 61 .70% ) ,and the organic components in loess is believed to be an important reason for the low values of recovery rates .The UV spectrophotometry is appropriate for chlorpyrifos analysis in arid loess .