Interface Instrumentation between Computer and Spectrophotometer for Reaction Rate Measurements

Autor:	Arthur A. Eggert, Arletta E. Sherry, G. Phillip Hicks, E. Clifford Toren
Rok vydání:	1970
Předmět:	Reaction rate Absorbance Accuracy and precision Chemistry Instrumentation Interface (computing) Biochemistry (medical) Clinical Biochemistry Analytical chemistry Lactic dehydrogenase Software changes Voltage
Zdroj:	Clinical Chemistry. 16:215-221
ISSN:	1530-8561 0009-9147
DOI:	10.1093/clinchem/16.3.215
Popis:	An instrument interface which generates an output voltage level proportional to rate of change of an input voltage is described. The interface permits direct connection of routine spectrophotometric rate measurements to a real-time laboratory computer system. The form of the voltage level output enables the computer to read rates in the same manner as peaks are read for AutoAnalyzers, permitting the clinical laboratory LABCOM system to compute and report results for rate methods with no software changes. Spectrophotometric rates from about 10 to 0.025 absorbance units per min can be measured with an accuracy and precision of less than 1% relative in measurement times of about 10 to 30 s, respectively. The interface is readily constructed from commercially available components. Test results are presented for simulated rates, lactic dehydrogenase, and alkaline phosphatase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::242ef693510a7558d38f2a2849b8c52c https://doi.org/10.1093/clinchem/16.3.215 Zobrazit plný text záznamu