PMID- 17386678 OWN - NLM STAT- MEDLINE DCOM- 20070706 LR - 20131121 IS - 1873-4324 (Electronic) IS - 0003-2670 (Linking) VI - 585 IP - 2 DP - 2007 Mar 7 TI - Determination of antimony(III) and total antimony by single-drop microextraction combined with electrothermal atomic absorption spectrometry. PG - 300-4 AB - A simple and sensitive method for using electrothermal atomic absorption spectrometry (ET AAS) with Rh as permanent modifier determination of Sb(III) and total Sb after separation and preconcentration by N-benzoyl-N-phenylhydroxylamine (BPHA)-chloroform single drop has been developed. Parameters, such as pyrolysis and atomization temperature, solvent type, pH, BPHA concentration, extraction time, drop size, stirring rate and sample volume were investigated. Under the optimized experimental conditions, the detection limits (3sigma) were 8.0 ng L(-1) for Sb(III) and 9.2 ng L(-1) for total Sb, respectively. The relative standard deviations (R.S.Ds.) were 6.6% for Sb(III) and 7.1% for total Sb (c=0.2 ng mL(-1), n=7), respectively. The enrichment factor was 96. The developed method has been applied successfully to the determination of Sb(III) and total Sb in natural water samples. FAU - Fan, Zhefeng AU - Fan Z AD - Department of Chemistry, Shanxi Normal University, Linfen 041004, PR China. zhefengfan@163.com LA - eng PT - Journal Article DEP - 20061230 PL - Netherlands TA - Anal Chim Acta JT - Analytica chimica acta JID - 0370534 RN - 0 (Hydroxylamines) RN - 0 (Solvents) RN - 059QF0KO0R (Water) RN - 304-88-1 (N-benzoyl-N-phenylhydroxylamine) RN - 7V31YC746X (Chloroform) RN - 9IT35J3UV3 (Antimony) SB - IM MH - Antimony/*analysis/chemistry MH - Chemistry Techniques, Analytical/*methods MH - Chloroform/chemistry MH - Electrochemistry/*methods MH - Hot Temperature MH - Hydrogen-Ion Concentration MH - Hydroxylamines/chemistry MH - Particle Size MH - Sensitivity and Specificity MH - Solvents/chemistry MH - Spectrophotometry, Atomic/*methods MH - Temperature MH - Time Factors MH - Water/chemistry EDAT- 2007/03/28 09:00 MHDA- 2007/07/07 09:00 CRDT- 2007/03/28 09:00 PHST- 2006/09/11 00:00 [received] PHST- 2006/12/12 00:00 [revised] PHST- 2006/12/20 00:00 [accepted] PHST- 2007/03/28 09:00 [pubmed] PHST- 2007/07/07 09:00 [medline] PHST- 2007/03/28 09:00 [entrez] AID - S0003-2670(06)02459-7 [pii] AID - 10.1016/j.aca.2006.12.034 [doi] PST - ppublish SO - Anal Chim Acta. 2007 Mar 7;585(2):300-4. doi: 10.1016/j.aca.2006.12.034. Epub 2006 Dec 30.