浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司建立自動(dòng)頂空氣相色譜法測(cè)定飲用水中三氯甲烷和四氯化碳的方法。方法:飲用水樣在頂空自動(dòng)進(jìn)樣裝置上加熱,平衡后進(jìn)樣,經(jīng)15%DC-550/Chromosorb W AW填充柱分離,微池電子捕獲檢測(cè)器檢測(cè)。結(jié)果:三氯甲烷在0μg/L～33.92μg/L濃度范圍、四氯化碳在0μg/L～1.60μg/L濃度范圍內(nèi)呈良好線性關(guān)系,其相關(guān)系數(shù)分別為0.9998和0.9997,三氯甲烷的最低檢出濃度為0.06μg/L、四氯化碳的最低檢出濃度為0.01μg/L,回收率為92.9%～105.0%,相對(duì)標(biāo)準(zhǔn)偏差為0.77%～2.28%。結(jié)論:該方法操作簡(jiǎn)便、靈敏、準(zhǔn)確、重現(xiàn)性好,適用于飲用水中三氯甲烷和四氯化碳的測(cè)定。
名稱：填充柱
型號(hào)：15%DC-550/Chromosorb W AW填充柱
規(guī)格：2m*3mm
最高使用溫度：220°C
貨號(hào)：20230223001
Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. has established an automatic headspace gas chromatography method for the determination of chloroform and carbon tetrachloride in drinking water. Methods: The drinking water sample was heated on the headspace automatic sampling device, balanced and injected, separated by a 15% DC-550/Chromosorb W AW packed column, and detected by a microcell electron capture detector. Result: Trichloromethane at 0 μ g/L～33.92 μ G/L concentration range, carbon tetrachloride at 0 μ g/L～1.60 μ There is a good linear relationship within the range of g/L concentration, and its correlation coefficients are 0.9998 and 0.9997 respectively, and the lowest detectable concentration of trichloromethane is 0.06 μ G/L, the lowest detectable concentration of carbon tetrachloride is 0.01 μ G/L, the recovery rate is 92.9%~105.0%, and the relative standard deviation is 0.77%~2.28%. Conclusion: The method is simple, sensitive, accurate and reproducible, and suitable for the determination of chloroform and carbon tetrachloride in drinking water.
Name: Filled Column
Model: 15% DC-550/Chromosorb W AW filled column
Specification: 2m * 3mm
Maximum service temperature: 220 ° C
Article No.: 20230223001
滕州市浩瀚色譜儀器技術(shù)服務(wù)有限公司
電話：0632-5667636
傳真：0632-5667636
手機(jī)：15562228838,13963221227
地址：山東滕州市平行路（商務(wù)部和技術(shù)部）
郵箱：wangxiaoying9@126.com
QQ:1404939462
聯(lián)系人：王經(jīng)理
網(wǎng)址：www.shopjjdr.com