Modification of delayed-incubation procedure for detection of fecal coliforms in water
نویسندگان
چکیده
منابع مشابه
Anaerobic incubation of membrane filter cultures for improved detection of fecal coliforms from recreational waters.
Anaerobic incubation of membrane filter cultures significantly enhanced detection of fecal coliforms in surface-water samples from recreational beaches. In contrast to standard aerobic incubation, anaerobic incubation suppressed overgrowth of masking, noncoliform bacteria but did not increase the frequency of fecal coliform recovery.
متن کاملmodification of nanoclay for improving the physico-mechanical properties of dental adhesives
هدف اصلی این مطالعه تهیه یک سامانه نوین چسب عاجی دندانی بر پایه نانورس پیوند شده با پلی متاکریلیک اسید، نانورس پیوند شده با پلی اکریلیک اسید، مخلوط نانوسیلیکا و نانورس پیوند شده با پلی متاکریلیک اسید، مخلوط نانوسیلیکا و نانورس پیوند شده با پلی اکریلیک اسید و نانورس پیوند شده با کیتوسان اصلاح شده با گلایسیدیل متاکریلات است. پیوند پلی متاکریلیک اسید و پلی اکریلیک اسید بر ری سطح نانورس در حضور و ...
Spectrofluorometric assay for rapid detection of total and fecal coliforms from surface water.
With a spectrofluorometer, the length of the incubation time required in the fluorogenic assay was reduced to 12 h. The threshold emissions for reading the fluorogenic reaction by the spectrofluorometer were 5 and 10 U for lauryl tryptose broth media containing 4-methylumbelliferyl-beta-D-galactoside and 4-methylumbelliferyl-beta-D-glucuronide, respectively. These two kinds of threshold units w...
متن کاملstudy of cohesive devices in the textbook of english for the students of apsychology by rastegarpour
this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1983
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.46.4.889-893.1983