贵州化工
貴州化工
귀주화공
GUIZHOU CHEMICAL INDUSTRY
2012年
5期
30-31
,共2页
吹扫捕集%气质联用%苯系物
吹掃捕集%氣質聯用%苯繫物
취소포집%기질련용%분계물
Purge - trap%BTEXs%GC/MS
以吹扫捕集方式,通过GC/MS测定水中苯系物。考察了吹扫时间、吹扫流量、解析时间、解析温度对回收率的影响,确定了测定水中苯系物最佳实验条件。方法平均回收率96%～102%,检出限为0.03～0.39μg/L,本方法可用于水中痕量苯系物测定。
以吹掃捕集方式,通過GC/MS測定水中苯繫物。攷察瞭吹掃時間、吹掃流量、解析時間、解析溫度對迴收率的影響,確定瞭測定水中苯繫物最佳實驗條件。方法平均迴收率96%～102%,檢齣限為0.03～0.39μg/L,本方法可用于水中痕量苯繫物測定。
이취소포집방식,통과GC/MS측정수중분계물。고찰료취소시간、취소류량、해석시간、해석온도대회수솔적영향,학정료측정수중분계물최가실험조건。방법평균회수솔96%～102%,검출한위0.03～0.39μg/L,본방법가용우수중흔량분계물측정。
The BTEXs were enriched by the system of purge - trap, then determined by GC/MS. The effects that include the conditions of GC, the time of purge, flow rate of purge and the time of desorption , the temp of de- sorption were discussed. The average recoveries were 96 - 102%. The limits of detection were 0.03 -0.39μg/L. The method can be applied to analysis of BTEXs in water.
