title: Ion chromatographic study of sodium, potassium and ammonium in human body fluids with bulk acoustic wave detection.
abstract: In the present paper, determination of Na+, K+ and NH4+ in saliva and serum was carried out using an ion chromatography (IC) method with a bulk acoustic wave (BAW) sensor as detector and 2.0 mmol/l nitric acid as mobile phase. The IC-BAW method is simple, rapid and accurate. Comparison between the BAW detector and the conventional conductivity detector (CDD) was discussed. The IC-BAW showed agreement with the commonly used flame photometric method for Na+ and K+ and enzymatic method for NH4+, as well as IC-CDD for those three cations.
authors.affiliation: Chemistry and Chemical Engineering College, Hunan University, Changsha, China.
authors.forename: B S
authors.initials: BS
authors.lastname: Yu
authors.forename: L H
authors.initials: LH
authors.lastname: Nie
authors.forename: S Z
authors.initials: SZ
authors.lastname: Yao
mesh_terms: D001826:Body Fluids / Q000737:chemistry*; D002412:Cations / Q000032:analysis / Q000097:blood; D002852:Chromatography, Ion Exchange / Q000295:instrumentation; D006801:Humans; D011188:Potassium / Q000032:analysis* / Q000097:blood; D000644:Quaternary Ammonium Compounds / Q000032:analysis* / Q000097:blood; D012463:Saliva / Q000737:chemistry; D012964:Sodium / Q000032:analysis* / Q000097:blood
chemical_list: D002412:Cations; D000644:Quaternary Ammonium Compounds; D012964:Sodium; D011188:Potassium