DEPENDENCE OF THE LASER 2-PHOTON IONIZATION SIGNAL OF ANTHRACENE ON THE ELECTRON-MOBILITY AND THE EXCESS ENERGY IN NONPOLAR-SOLVENTS

被引：15

作者：

OGAWA, T

SATO, M

TACHIBANA, M

IDETA, K

INOUE, T

NAKASHIMA, K

机构：

[1] Department of Molecular Sciences and Technology, Kyushu University, Kasuga-shi, Fukuoka

来源：

ANALYTICA CHIMICA ACTA | 1995年 / 299卷 / 03期

关键词：

ANTHRACENE; LASER SPECTROSCOPY;

D O I：

10.1016/0003-2670(94)00310-I

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The photocurrent and photoionization charge of anthracene in various non-polar solvents have been measured under the third-harmonics of a Nd-YAG laser excitation. They are quadratically proportional to the laser pulse energy, though those of water are cubically proportional to them. Anthracene exhibited a larger signal in those solvents in which both the electron mobility and the excess energy are large. Such solvents offered a higher sensitivity for the photoionization technique. Degassing showed only a minor effect. The detection limits were 14 ng/dm(3) (ppt) in hexane and 3.0 ng/dm(3) (ppt) in 2,2,4-trimethylpentane.

引用

页码：355 / 360

页数：6

共 22 条

[11] LASER 2-PHOTON IONIZATION OF 4,4'''-BIS[(2-BUTYLOCTYL)OXY]-PARA-QUATERPHENYL ON A PLATINUM SURFACE IN AMBIENT AIR - HIGHLY SENSITIVE DETECTION OF SURFACE MOLECULES [J].