1957
DOI: 10.1128/aem.5.4.235-243.1957
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Analytical Microbiology

Abstract: Turbid or highly colored solutions interfere with the determination of the response. (4) Samples must be sterile. The presence of microorganisms not affected by the material being assayed would cause the development of turbidity which would invalidate the results obtained. (5) Substances in sample solutions other than the compound being assayed, may interfere with the assay. This occurs, particularly, when samples of natural products are tested. Quantitative Methods In quantitative methods, under the condition… Show more

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Cited by 13 publications
(4 citation statements)
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References 18 publications
(21 reference statements)
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“…The diffusion assay of antibiotics employing a disc plate method has the great virtue of convenience, simplicity, sensitivity, efficiency, and dependability [57,58]. A chemical or physicochemical test, if validated as completely specific for the active component, may be more accurate than results generally achieved with microbiological procedures [59].…”
Section: Antibiotic Assay Methodsmentioning
confidence: 99%
“…The diffusion assay of antibiotics employing a disc plate method has the great virtue of convenience, simplicity, sensitivity, efficiency, and dependability [57,58]. A chemical or physicochemical test, if validated as completely specific for the active component, may be more accurate than results generally achieved with microbiological procedures [59].…”
Section: Antibiotic Assay Methodsmentioning
confidence: 99%
“…Neste tipo de doseamento, a resposta do micro-organismos à amostra é comparada com a resposta à uma preparação padrão, cuja concentração e composição são conhecidas (KAVANAGH, 1972;PINTO et al, 2010). (GAVIN, 1957;KAVANAGH, 1972).…”
Section: ! 6!unclassified
“…A solução amostra é responsável por várias reações, como por exemplo, a mudança do meio, afetando o crescimento do micro-organismo, pela alteração da claridade ou cor, pela redução da capacidade de tamponamento e pela alteração na concentração de sal do meio de cultura (GAVIN, 1957).…”
Section: ! 6!unclassified
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