title: Poly(allylamine) beads as selective sorbent for preconcentration of formaldehyde and acetaldehyde in high-performance liquid chromatographic analysis.
abstract: Formaldehyde and acetaldehyde in water were determined by preconcentration with poly(allylamine) beads, derivatization with 2,4-dinitrophenylhydrazine (DPH) and analysis by HPLC. Poly(allylamine) beads (0.5 g) were used to adsorb formaldehyde and acetaldehyde at 1.2-150 microg l(-1) and 3.5-220 microg l(-1) from water (1 l). The concentration factor is 50 fold. The aldehydes were eluted and derivatized with 2 mM DPH in 0.5 M H2SO4 (10 ml). The time of analysis was 1 h. The detection limits (S/N=3) for formaldehyde and acetaldehyde were 0.6 and 2 microg l(-1), respectively.
authors.affiliation: Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University, Kofu, Japan. kibat@abll.yamanashi.ac.jp
authors.forename: N
authors.initials: N
authors.lastname: Kiba
authors.forename: R
authors.initials: R
authors.lastname: Yagi
authors.forename: L
authors.initials: L
authors.lastname: Sun
authors.forename: M
authors.initials: M
authors.lastname: Tachibana
authors.forename: K
authors.initials: K
authors.lastname: Tani
authors.forename: H
authors.initials: H
authors.lastname: Koizumi
authors.forename: T
authors.initials: T
authors.lastname: Suzuki
mesh_terms: D000079:Acetaldehyde / Q000737:chemistry*; D000327:Adsorption; D000499:Allylamine / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005557:Formaldehyde / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D011108:Polymers / Q000737:chemistry*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D011108:Polymers; D005557:Formaldehyde; D000499:Allylamine; D000079:Acetaldehyde