PMID- 17386531 OWN - NLM STAT- MEDLINE DCOM- 20070608 LR - 20131121 IS - 1873-4324 (Electronic) IS - 0003-2670 (Linking) VI - 583 IP - 1 DP - 2007 Jan 30 TI - Speciation of inorganic selenium using capillary electrophoresis-inductively coupled plasma-atomic emission spectrometry with on-line hydride generation. PG - 92-7 AB - A novel and simple hydride generator has been developed. The hydride generator has good stability and high gas liquid separation efficiency. The generator serves as an interface of capillary electrophoresis (CE) and inductively coupled plasma atomic emission spectrometry (ICP-AES). This device eliminates the nebulization step and overcomes the common problem of suction flow resulting from the use of nebulization gas in ICP. Selenium compounds that were separated by CE were converted into the corresponding volatile hydrides, followed by ICP-AES measurement. The effects of the concentration of the hydride generating reagents (HCl and NaBH4), the carrier gas flow rate, and heavy metal interference on Se emission intensity were discussed. The relative standard deviations (RSDs) of peak area, based on six determinations of 50 ng mL(-1) standard of Se(IV) and Se(VI), were 1.5% and 1.8%, respectively. The detection limits (3sigma) of peak area were 2.1 ng mL(-1) and 2.3 ng mL(-1) for Se(IV) and Se(VI), respectively. Speciation analysis of inorganic Se(IV) and Se(IV) species using the HG-CE-ICP-AES system was demonstrated in tap and river water samples. FAU - Deng, Biyang AU - Deng B AD - College of Chemistry and Chemical Engineering, Guangxi Normal University, 541004 Guilin, China. dengby16@163.com FAU - Feng, Jinrong AU - Feng J FAU - Meng, Jun AU - Meng J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20060926 PL - Netherlands TA - Anal Chim Acta JT - Analytica chimica acta JID - 0370534 RN - 0 (Anhydrides) RN - 0 (Indicators and Reagents) RN - H6241UJ22B (Selenium) SB - IM MH - Anhydrides/analysis MH - Electrophoresis, Capillary/methods MH - Indicators and Reagents MH - Selenium/*isolation & purification MH - Spectrophotometry, Atomic/methods EDAT- 2007/03/28 09:00 MHDA- 2007/06/09 09:00 CRDT- 2007/03/28 09:00 PHST- 2006/08/05 00:00 [received] PHST- 2006/09/16 00:00 [revised] PHST- 2006/09/19 00:00 [accepted] PHST- 2007/03/28 09:00 [pubmed] PHST- 2007/06/09 09:00 [medline] PHST- 2007/03/28 09:00 [entrez] AID - S0003-2670(06)01961-1 [pii] AID - 10.1016/j.aca.2006.09.038 [doi] PST - ppublish SO - Anal Chim Acta. 2007 Jan 30;583(1):92-7. doi: 10.1016/j.aca.2006.09.038. Epub 2006 Sep 26.