An inexpensive flow photometer for clinical analysis based on a bicolour light emitting diode.

被引：11

作者：

Araujo, MCU ^{[1
]}

Santos, SRB ^{[1
]}

Silva, EA ^{[1
]}

Veras, G ^{[1
]}

Lima, JLFC ^{[1
]}

Lapa, RAS ^{[1
]}

机构：

[1] UNIV PORTO, DEPT QUIM FIS, FAC FARM, P-4100 OPORTO, PORTUGAL

来源：

QUIMICA NOVA | 1997年 / 20卷 / 02期

关键词：

flow photometer; light emitting diode; clinical analysis;

D O I：

10.1590/S0100-40421997000200004

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The construction and evaluation of an Inexpensive flow photometer for clinical analysis, using a bicolour LED and a phototransistor adapted for tubular flow cell, are described, The instrument presents some new features such as: automatic zero, electronic calibration and peak-hold signal. When compared with a classical photometer, it is simpler and has the advantages of a flow analysis system: lower volumes of reagents and samples, lower levels of contamination, shorter time for analysis and lower analysis costs. The instrument was used in the determination of the constituents in blood samples. The results obtained agree with those obtained by a classical photometer and the precision was better.

引用

页码：137 / 145

页数：9

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