title: Flow-injection chemiluminescence determination of chloroquine using peroxynitrous acid as oxidant.
abstract: A new flow-injection chemiluminescence (CL) method for determination of chloroquine is proposed based on a stronger chemiluminescence of chloroquine in hydrogen peroxide-nitrite-sulfuric acid medium. The proposed method allows the measurement of chloroquine over the range of 3.0x10(-7) to 1.0x10(-5)moll(-1). The detection limit is 8.6x10(-8)moll(-1), and the relative standard deviation for 1.0x10(-6)moll(-1) chloroquine (n=11) is 1.6%. The CL mechanism is also discussed.
authors.affiliation: Institute of Analytical Science, Northwest University, Xi'an 710069, PR China.
authors.forename: Yao-Dong
authors.initials: YD
authors.lastname: Liang
authors.forename: Jun-Feng
authors.initials: JF
authors.lastname: Song
authors.forename: Xiao-Feng
authors.initials: XF
authors.lastname: Yang
authors.forename: Wei
authors.initials: W
authors.lastname: Guo