PMID- 29048826 OWN - NLM STAT- MEDLINE DCOM- 20181109 LR - 20181109 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 35 IP - 8 DP - 2017 Aug 8 TI - [Rapid screening of acidity regulators in dairy by ion chromatography-high resolution mass spectrometry]. PG - 886-890 LID - 10.3724/SP.J.1123.2017.04012 [doi] AB - A method for screening of acidity regulators in dairy based on ion chromatography-high resolution mass spectrometry technology (IC-HRMS) was set up. The dairy samples were extracted by KOH (pH 7-8) and Oasis MAX SPE column, and separated by a Dionex IonPac AS11-HC column (250 mmx4 mm). All the acidity regulators were detected by Orbitrap full scan mode. Taking six organic acids as an example, the calibration curves showed good linearities in the range of 0.05-5.00 mg/L, and the correlation coefficients (r) were higher than 0.99. By detecting the spiked samples, the recoveries were in the range of 74.3%-115.5% with the relative standard deviations (RSDs) between 0.64% and 4.81%. Malic acid, citric acid, lactic acid, succinic acid and adipic acid could be detected by IC-HRMS in the commercial dairy samples. The results indicate that the method is simple, rapid and suitable for the qualitative screening of acidity regulators in dairy products. FAU - Yun, Huan AU - Yun H AD - Beijing Entry-Exit Inspection and Quarantine Bureau, Beijing 100026, China. FAU - Liu, Xin AU - Liu X AD - Beijing Entry-Exit Inspection and Quarantine Bureau, Beijing 100026, China. liuxin@bjciq.gov.cn. FAU - Cui, Jie AU - Cui J AD - Beijing Industrial Technician College, Beijing 100023, China. FAU - Yang, Jing AU - Yang J AD - Beijing Entry-Exit Inspection and Quarantine Bureau, Beijing 100026, China. FAU - Liu, Ying AU - Liu Y AD - Beijing Entry-Exit Inspection and Quarantine Bureau, Beijing 100026, China. LA - chi PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Acids) RN - 0 (Ions) RN - 0 (Organic Chemicals) SB - IM MH - Acids/*analysis MH - *Chromatography MH - *Dairy Products MH - Ions MH - *Mass Spectrometry MH - Organic Chemicals MH - Spectrum Analysis OTO - NOTNLM OT - acidity regulators OT - dairy OT - ion chromatography-high resolution mass spectrometry (IC-HRMS) OT - rapid screening EDAT- 2017/10/20 06:00 MHDA- 2018/11/10 06:00 CRDT- 2017/10/20 06:00 PHST- 2017/10/20 06:00 [entrez] PHST- 2017/10/20 06:00 [pubmed] PHST- 2018/11/10 06:00 [medline] AID - 10.3724/SP.J.1123.2017.04012 [doi] PST - ppublish SO - Se Pu. 2017 Aug 8;35(8):886-890. doi: 10.3724/SP.J.1123.2017.04012.