- 相關(guān)推薦
液相色譜-電噴霧質(zhì)譜法測(cè)定污水和污泥中壬基酚聚氧乙烯醚的參數(shù)優(yōu)化
摘要： 在液相色譜-電噴霧質(zhì)譜法測(cè)定壬基酚聚氧乙烯醚的過(guò)程中,對(duì)壬基酚聚氧乙烯醚加合離子的形成影響因素進(jìn)行分析,優(yōu)化了關(guān)鍵參數(shù),建立了測(cè)定污水和污泥中壬基酚聚氧乙烯醚的高分辨高靈敏的液相色譜-電噴霧質(zhì)譜方法.流動(dòng)相A為0.1mmol·l~(-1)乙酸鈉緩沖液,流動(dòng)相B為甲醇,各聚合度壬基酚聚氧乙烯醚的加合離子響應(yīng)值達(dá)到最大;錐孔電壓沒(méi)為60V能最大程度上避免[NPnEO+2Na]~(2+)對(duì)測(cè)定的干擾.NP1EO,NP2EO和NPnEOs(n=3-15)的儀器檢出限分別為10pg,1pg和0.1pg.該方法成功用于污水和污泥中壬基酚聚氧乙烯醚的測(cè)定. Abstract： The analysis of nonylphenol ethoxylate by liquid chromatography-electrospray ionization mass spectrometry (LC-ESI-MS) was investigated in terms of some parameters influencing the formation of different types of adducts. To compare the metal preference of NPnEOs during adduct formation, NaAc, NH_4Ac, and KAc were added to mobile phase, respectively, and the corresponding adducts were monitored. Results showed that the sodium adducts gave the most signals for both short-chain and long-chain oligomers at NaAc of 0.1 mmol ·l~(-1) used as the mobile phase buffer. At the cone voltage of 60V, [NPnEO +2Na]~(2+) were eliminated at the most limit to avoid interference during quantification. For NP1EO, NP2EO, NPnEOs (n = 3-15), IDLs were 10pg, 1pg, 0.1pg, respectively. Investigation of NPnEOs in wastewater and sludge samples taken from a WWTPs in Beijing was successfully performed by this method. 作 者： 連靜 劉俊新 LIAN Jing LIU Jun-xin 作者單位： 中國(guó)科學(xué)院生態(tài)環(huán)境研究中心,北京,100085 期 刊： 環(huán)境化學(xué) ISTICPKU Journal： ENVIRONMENTAL CHEMISTRY 年，卷(期)： 2009, 28(6) 分類號(hào)： X13 關(guān)鍵詞： 壬基酚聚氧乙烯醚 緩沖液 加合離子 錐孔電壓. Keywords： nonylphenol ethoxylates adduct formation mobile phase buffer cone voltage.【液相色譜-電噴霧質(zhì)譜法測(cè)定污水和污泥中壬基酚聚氧乙烯醚的參數(shù)優(yōu)化】相關(guān)文章：
污水污泥處理方案范文（精選10篇）06-20
同學(xué)十年相聚感言（精選60句）11-06
安裝三相電申請(qǐng)書(shū)12-15
相和歌辭·江南曲,相和歌辭·江南曲張籍,相和歌辭·江南曲的意思,相和歌辭·江南曲賞析 -詩(shī)詞大全03-13
相和歌辭·白頭吟,相和歌辭·白頭吟張籍,相和歌辭·白頭吟的意思,相和歌辭·白頭吟賞析 -詩(shī)詞大全03-13
粉底液和粉餅的區(qū)別10-14
理論和實(shí)際相結(jié)的詩(shī)句12-26
相和歌辭·賈客樂(lè),相和歌辭·賈客樂(lè)張籍,相和歌辭·賈客樂(lè)的意思,相和歌辭·賈客樂(lè)賞析 -詩(shī)詞大全03-13