Photoacoustic spectroscopy of layered samples: Phase-detection technique

被引：12

作者：

Garcia-Quiroz, A

Vargas, H

Tomas, SA

Acosta-Avalos, D

Cruz-Orea, A

Albores, A

Valcarcel, JP

机构：

[1] IPN, CINVESTAV, Dept Fis, Mexico City 07738, DF, Mexico

[2] IPN, CINVESTAV, PMCATA, Mexico City 07738, DF, Mexico

[3] IPN, CINVESTAV, Secc Toxicol Ambiental, Dept Farmacol & Toxicol, Mexico City 07738, DF, Mexico

[4] Univ Surcolombiana, Neiva, Colombia

来源：

INSTRUMENTATION SCIENCE & TECHNOLOGY | 1998年 / 26卷 / 2-3期

关键词：

D O I：

10.1080/10739149808002696

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Depth profiles of double layer biological samples, obtained by photoacoustic spectroscopy, have been studied using the phase-resolved method. The application of the method was demonstrated by insulating out the spectra of the cuticle and the pigment layers of a lettuce leaf. Using this method, we were able to monitor the phase shift between the cuticle and the pigment layers as a function of the time elapsed after herbicide spraying. The temporal changes occurring in lettuce leaves under the action of dehydration were also investigated.

引用

页码：227 / 239

页数：13

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