查詢結果分析
來源資料
相關文獻
- Determination of Low-molecule-weight Aldehydes in Packed Drinking Water by High Performance Liquid Chromatography
- 酒中醛類(甲醛、乙醛)及其分析方法之簡介
- 快速硬化型膠合劑製作結構用集成材之研究(1)--合成條件對PRF及PMAF樹脂性質之影響
- 以不同類型染料進行非甲醛系的BTAC交鏈棉織物之同時式染色與永久免燙加工
- 快速硬化型膠合劑製作結構用集成材之研究(2)--樹皮萃取物在快速硬化型膠合劑之應用
- 以非甲醛系的乙二醛進行蠶絲織物之防縐加工及染色
- 不同合成條件MUF樹脂之製備及其性質
- 快速硬化型膠合劑製作結構用集成材之研究(3)--蜜月型膠合劑之應用
- 市售壁紙之品質檢定
- Effect of Gas Flow Rate on the Paired Oxidative Degradation of Formaldehyde in a CSTER
頁籤選單縮合
題名 | Determination of Low-molecule-weight Aldehydes in Packed Drinking Water by High Performance Liquid Chromatography=以高效液相層析法分析包裝水中低分子量醛類含量 |
---|---|
作 者 | 蔡佳芬; 蕭惠文; 李樹其; 周薰修; | 書刊名 | 藥物食品分析 |
卷期 | 11:1 2003.03[民92.03] |
頁次 | 頁46-52+75 |
分類號 | 412.37 |
關鍵詞 | 包裝水; 甲醛; 乙醛; 丙醛; DNPH衍生物; Packed drinking water; Formaldehyde acetaldehyde; Propionaldehyde; DNPH derivative; |
語文 | 英文(English) |
中文摘要 | 利用高技液相層析法 (high performance liquid chromatography, HPLC) 分析包裝水中甲醛、乙醛及丙醛含量之檢驗方法業已建立。水樣檢體以DNPH (2,4-dinitrophenylhydrazine) 的試劑0.5 mL及2M過氯酸0.1mL於55℃反應60分鐘,再以C18之玻璃淨化管柱吸附,利用乙腈5mL將其沖提,進行HPLC分析。甲醛、乙醛及丙醛之DNPH衍生物以Cosmosil 5C18-MS為分離管,乙腈/去離子水 (55/45,v/v) 為移動相,可獲得較佳之分離效果,檢測波長為紫外光360nm。去離子水中同時添加甲醛、乙醛及丙醛各2-200ppb,其平均回收率為84.4-103.2%、90.2-122.1%及60.8-100.4%,最低檢出限量均為1ppb。以此方法檢驗市售包裝水的件,包括國產品的件及進口品20件,檢測結果均遠低於世界衛生組織對飲用水品質所訂之900μg/L限量。 |
英文摘要 | A high performance liquid chromatographic (HPLC) method for the determination of formaldehyde, acetaldehyde and propionaldehyde in packed drinking water was developed. Aldehydes were derivatized with 0.5 mL DNPH (2,4-dinitrophenylhydrazine) reagent and 0.1 mL 2 M perchloride at 55°C in 60 minutes, then adsorbed in C18 glass cartridge (was performed), eluted with 5 mL acetonitrile and finally determined by HPLC. Formaldehyde, acetaldehyde and propionaldehyde-DNPH-derivatives were seperated on a Cosmosil 5C18-MS column by using acetonitrile/D.I. water (55/45, v/v) as a mobile phase, and detected with UV 360 nm. Recovery studies were performed by fortifying D.I. water with formaldehyde, acetaldehyde and propionaldehyde at various concentrations from 2 to 200 ppb. Recovery rates were in the range of 84.4 – 103.2%, 90.2 – 122.1% and 60.8 – 100.4%. The detection limits for all three aldehydes were 1 ppb. Sixty-three packed drinking water samples collected from various markets were analyzed. These results were well below the guideline for drinking water quality by WHO (900 μg/L). |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。