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Evaluation of Rapid Stain IDentification (RSID™) Reader System for Analysis and Documentation of RSID™ Tests

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Author(s): Alexander Sinelnikov | Anna Kalinina | Jennifer B. Old | Pravatchai W. Boonlayangoor | Karl A. Reich

Journal: Applied Sciences
ISSN 2076-3417

Volume: 3;
Issue: 3;
Start page: 624;
Date: 2013;
Original page

Keywords: Rapid Stain IDentification (RSID™) Reader System | RSID™ Blood Test | RSID™ Saliva Test | RSID™ Semen Test | RSID™ Urine Test | accuracy | reproducibility

ABSTRACT
The ability to detect the presence of body fluids is a crucial first step in documenting and processing forensic evidence. The Rapid Stain IDentification (RSID™) tests for blood, saliva, semen and urine are lateral flow immunochromatographic strip tests specifically designed for forensic use. Like most lateral flow strips, the membrane components of the test are enclosed in a molded plastic cassette with a sample well and an observation window. No specialized equipment is required to use these tests or to score the results seen in the observation window; however, the utility of these tests can be enhanced if an electronic record of the test results can be obtained, preferably by a small hand-held device that could be used in the field under low light conditions. Such a device should also be able to “read” the lateral flow strips and accurately record the results of the test as either positive, i.e., the body fluid was detected, or negative, i.e., the body fluid was not detected. Here we describe the RSID™ Reader System—a ruggedized strip test reader unit that allows analysis and documentation of RSID™ lateral flow strip tests using pre-configured settings, and show that the RSID™ Reader can accurately and reproducibly report and record correct results from RSID™ blood, saliva, semen, and urine tests.
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