PMID- 22268355 OWN - NLM STAT- MEDLINE DCOM- 20121015 LR - 20161018 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 29 IP - 10 DP - 2011 Oct TI - [Influences of ion-suppressors on retention behaviors of nine food additives in reversed-phase high performance liquid chromatographic separation]. PG - 988-94 AB - The influences of ion-suppressors on retention behaviors of nine food additives, i.e., acesulfame, saccharin, caffeine, aspartame, benzoic acid, sorbic acid, stevioside, dehydroacetic acid and neotame in reversed-phase high performance liquid chromatographic (RP-HPLC) separation were investigated. The organic modification effects of acids, i. e. , trifluoroacetic acid (TFA) and buffer salts, i. e. , TFA-ammonium acetate (AmAc) were studied emphatically. The relationships between retention factors of solutes and volume percentages of ion-suppressors in the mobile phase systems of acetonitrile-TFA aqueous solution and acetonitrile-TFA-AmAc aqueous solution were quantitatively established, separately. The separation of nine food additives was completed by a gradient elution with acetonitrile-TFA (0.01%, v/v)-AmAc (2. 5 mmol/L) aqueous solution as the mobile phases. An RP-HPLC method was established for the simultaneous determination of nine food additives in red wine. In the range of 10. 0 - 100. 0 mg/L, nine food additives showed good linearity with the correlation coefficients ( r2 ) larger than 0. 999 1. The limits of detection (LODs) were in the range of 0. 33 - 2. 36 mg/L and the limits of quantification (LOQs) were in the range of 1. 11 - 7. 80 mg/L. The spiked recoveries were between 87. 61% and 108. 4% with the relative standard deviations (RSDs) of 2. 2% -9. 4%. These results are of referential significance for the rapid establishment and accu- rate optimization of RP-HPLC separation for the simultaneous determination of food additives in other foods. FAU - Zhao, Yonggang AU - Zhao Y AD - Ningbo Municipal Center for Disease Control and Prevention, Ningbo Key Laboratory of Poison Research and Control, Ningbo 315010, China. FAU - Chen, Xiaohong AU - Chen X FAU - Li, Xiaoping AU - Li X FAU - Yao, Shanshan AU - Yao S FAU - Jin, Micong AU - Jin M LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Food Additives) RN - 0 (Ions) RN - 3G6A5W338E (Caffeine) RN - FST467XS7D (Saccharin) RN - Z0H242BBR1 (Aspartame) SB - IM MH - Aspartame/analysis MH - Caffeine/analysis MH - Chromatography, High Pressure Liquid/*methods MH - Chromatography, Reverse-Phase/*methods MH - Food Additives/*analysis MH - Ions/*antagonists & inhibitors MH - Saccharin/analysis EDAT- 2012/01/25 06:00 MHDA- 2012/10/16 06:00 CRDT- 2012/01/25 06:00 PHST- 2012/01/25 06:00 [entrez] PHST- 2012/01/25 06:00 [pubmed] PHST- 2012/10/16 06:00 [medline] PST - ppublish SO - Se Pu. 2011 Oct;29(10):988-94.