Yerabham Praveenkumarreddy

5 Questions 8 Answers 0 Followers

Questions related from Yerabham Praveenkumarreddy

What steps do I need to take before injecting it to the LC-MS for wastewater SPE extracted samples?

Solid-phase extracted (Oasis HLB cartridge) wastewater samples were preserved in methanol for HPLC-MS-MS analysis at -20°C. After a lapse of 3 months, I see some of the extracted samples show...

29 June 2020 8,127 0 View

Any advice on heavy metal modeling on rivers?

I need an advice on heavy metal modeling on rivers can someone please suggest the relative literature on this. Thank you.

26 June 2015 4,050 2 View

Is there any possibility to resolve high conductivity problem with Cationic Ion chromatographic system?

Even though i tried to hydrate the suppressor with NaoH and milli q, i couldn't decrease the conductivity to less than 2 even retention times are effecting due to the high conductivity. Can...

19 April 2015 917 3 View

What are the protocols to identify antibiotic resistance in sewage sludge and water ?

I can not find complete protocols for resistance studies of antibiotics maximum, I am able to find kit procedure. Even if kits is correct can someone please recommend Indian made kits and the...

02 January 2015 4,588 3 View

What is the importance of nitrogen gas in ion chromatography?

Some manufacturers do not use nitrogen gas eg : metrohm Ion chromatography. What is the main use of nitrogen gas and also what is the material in the suppressor and inside the column?

01 January 2015 6,503 7 View