Indirect laser photoacoustic detection for trace samples on membranes.
An indirect laser photoacoustic technique is described. The basic principle, the experimental set-up and the influencing factors are discussed in detail. This method was used to quantify phenylamine, arginine and methylene blue on membranes. The linear ranges of the calibration curve are up to two orders of magnitude. With 1 microliter of sample solution, the detection limits are 0.25, 1.52 and 0.14 pmol for phenylamine, arginine and methylene blue, respectively.
He
J
J
Department of Chemistry, Zhanjiang Normal College, China.
Yu
B
B
D000042:Absorption; D000814:Aniline Compounds / Q000032:analysis*; D001120:Arginine / Q000032:analysis; D007834:Lasers; D008567:Membranes, Artificial; D008751:Methylene Blue / Q000032:analysis; D010777:Photochemistry / Q000295:instrumentation / Q000379:methods*; D012680:Sensitivity and Specificity; D013016:Sound
D000814:Aniline Compounds; D008567:Membranes, Artificial; D001120:Arginine; D008751:Methylene Blue