UNIVERSAL DETECTOR BASED ON MAGNETOOPTICAL ROTATION FOR HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY

被引：4
作者：
XI, XB
YEUNG, ES
机构：
[1] IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011
[2] IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011
来源：
ANALYTICAL CHEMISTRY | 1991年 / 63卷 / 05期
关键词：
D O I：
10.1021/ac00005a021
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Magnetooptical rotation (MOR) or the Faraday effect in the absence of absorption is a general physical property for all substances and can be used for universal detection in high-performance liquid chromatography. The longitudinal magnetic field with moderate field strength is provided by a cheap and compact permanent magnet assembly. A simplified equation has been derived for calculating Verdet constants of mixtures. The experimental results confirm the linear relationship between the MOR signal and weight fraction of the solute in dilute solution. The linear range is limited by the artifact signals caused by the refractive index change at high concentrations. The feasibility of this method is demonstrated in the detection of polynuclear aromatic hydrocarbons, where the limit of detection is in the submicrogram range.
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页码：490 / 496
页数：7
相关论文
共 40 条
[1]  
APRTINGTON JR, 1954, ADV TREATISE PHYSICA, P607
[2]  
BLOEMBERGEN N, 1964, J OPT SOC AM, V54, P551
[3]   IMPROVEMENTS IN DETECTABILITIES IN POLARIMETERS USING HIGH-FREQUENCY MODULATION [J].
BOBBITT, DR ;
YEUNG, ES .
APPLIED SPECTROSCOPY, 1986, 40 (03) :407-410
[4]   Determination of the magnetooptic rotatory power of pure organic substances and their mixtures [J].
Broersma, S ;
Waterman, HI ;
Westerdijk, JB ;
Wiersma, EC .
PHYSICA, 1943, 10 :97-129
[5]  
CHUCKERBUTTI BN, 1932, INDIAN J PHYS, V8, P387
[6]  
CHURCH DA, 1973, APPL PHYS LETT, V24, P185
[7]   TRACE-ELEMENT DETECTION BY FORWARD SCATTERING USING A CONTINUUM LIGHT-SOURCE [J].
DEBUS, H ;
HANLE, W ;
SCHARMANN, A ;
WIRZ, P .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 1981, 36 (10) :1015-1021
[8]  
DJERASSI C, 1971, Pure and Applied Chemistry, V25, P57, DOI 10.1351/pac197125010057
[9]  
Djerassi C, 1960, OPTICAL ROTATORY DIS
[10]   LASER-INDUCED THERMAL LENS EFFECT FOR CALORIMETRIC TRACE ANALYSIS [J].
DOVICHI, NJ ;
HARRIS, JM .
ANALYTICAL CHEMISTRY, 1979, 51 (06) :728-731
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