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Questions related from Amrah Qureshi
For a disinfection study, Monochloramine (NH2Cl) stock solution is prepared by dissolving ammonium hydroxide (NH2OH) (1M) solution in sodium hypochlorite (NaOCl) (1M) and cooled to 0°C at an NH4:...
19 March 2020 7,085 1 View
As per the experiment, bacterial cultures were centrifuged at 4000 RPM for 15 minutes, which is supposed to be the correct unit to express the parameters of centrifugation. But a reviewer denied...
06 August 2019 3,748 3 View
Is there any formula to convert bacterial log reduction to percentage in order to express the efficiency of a disinfectant? e.g. if count reduced from 10^8 cfu/ml to 10^3 cfu/ml i.e. 5-log...
30 April 2017 2,722 7 View
Is Escherichia coli and Klebsiella pneumoniae closely related? Do both of them produce green sheen color on EMB agar? A strain doubted to be E. coli identified as K. pneumoniae even after...
30 March 2017 1,364 2 View
I need to prepare chloramines (monochloramine) to introduce as a disinfectant in my water treatment setup. Papers suggest Cl:NH3 ratio of 4:1 i.e 4 parts of free chlorine to 1 part ammonia. Please...
07 March 2017 5,381 3 View
