Deepa Suresh

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Questions related from Deepa Suresh

What are some common methods for quantifying the concentration of silver on a membrane surface before leaching test?

We can use EDX to measure the silver concentration before and after leaching test to know amount of silver leached. However, the concentration of leached silver from membrane is measured using...

10 September 2023 8,316 1 View

How to mimic real seawater with 30000 ppm concentration for desalination?

Sodium chloride often used for preparation of synthetic seawater. However, for complex preparation to mimic seawater (desalination) with some added foulants such as BSA, is there any specific...

19 March 2023 2,202 0 View

The charge of commercial silver nanoparticle?

Silver nanoparticles can be positively, negatively or neutrally charged depending on the method of synthesis. However, I used commercial silver nitrate. How can I know the charge of silver...

25 December 2022 1,238 4 View

How to get optical density of E.coli and S.aureus to 0.05 at 450nm using spectrophotometer?

1) A bacterial colony taken from an agar plate was precultured in 20 mL of 30 g/L Tryptic soy broth (TSB) medium at 30 °C for 12 h.Then, the precultured bacterial suspension was diluted 50 times...

04 August 2022 3,355 0 View

How to conduct chlorine test at different pH such pH4.0, 7.0 and 8.0?

I couldn't find on the procedure for preparation of chlorine solution of 500 ppm at various pH. Is there any specific way to preprare it?

30 January 2022 1,729 2 View