PMID- 15508316 OWN - NLM STAT- MEDLINE DCOM- 20050228 LR - 20180123 IS - 0021-9673 (Print) IS - 0021-9673 (Linking) VI - 1050 IP - 2 DP - 2004 Oct 1 TI - In situ matrix evaporation by isothermal distillation of high-purity reagents for the determination of trace impurities by ion chromatography. PG - 223-7 AB - In situ matrix evaporation of high-purity acids based on isothermal distillation was achieved in a high-density polyethylene (HDPE) container on a water bath, to avoid contamination from the laboratory environment. The solubility of water and acid vapours in glycerol due to co-association was utilized to achieve complete evaporation. All major sources which contribute to the process blank were taken care of in a simple and effective way. A 50-fold preconcentration with >99.9% matrix removal was achieved for the analysis of low-boiling acids, HCl, HF, HNO3 and H2O2. The non-volatile ions NH4+, Li+, Na+, K+, Mg2+, Ca2+, SO4(2-) and PO4(3-) were determined by ion chromatograph with conductivity detection. The detection limits were 6-130 ng/l with recoveries of 85-110% for all ions studied. FAU - Dhavile, S M AU - Dhavile SM AD - National Centre for Compositional Characterisation of Materials (CCCM), Bhabha Atomic Research Centre, Hyderabad 500062, India. FAU - Thangavel, S AU - Thangavel S FAU - Chandrasekaran, K AU - Chandrasekaran K FAU - Dash, K AU - Dash K FAU - Rao, S V AU - Rao SV FAU - Chaurasia, S C AU - Chaurasia SC LA - eng PT - Journal Article PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Indicators and Reagents) RN - 0 (Polyethylenes) SB - IM MH - Chromatography, Ion Exchange MH - Indicators and Reagents/*chemistry MH - Polyethylenes MH - Reproducibility of Results MH - Thermodynamics EDAT- 2004/10/29 09:00 MHDA- 2005/03/01 09:00 CRDT- 2004/10/29 09:00 PHST- 2004/10/29 09:00 [pubmed] PHST- 2005/03/01 09:00 [medline] PHST- 2004/10/29 09:00 [entrez] AID - S0021-9673(04)01403-7 [pii] PST - ppublish SO - J Chromatogr A. 2004 Oct 1;1050(2):223-7.