Ahmed Mahfouz

8 Questions 15 Answers 0 Followers

Questions related from Ahmed Mahfouz

Hello all scientists, Does any of you interested in Extraction salts from Rejected RO water?

I am interrsested these days in the extraction of variable salts from Rejecter water and EOR , second stage waste water. I hope, I find a feasibility studdy of this project and how much it will...

09 December 2024 8,726 6 View

Is there any trusted equation for calcium ionized estimation in serum using calculation?

I found many diverse views taking about the calculation of calcium ionized depend on Albumin level and total calcium they are so different and can not trust any

01 March 2021 3,728 2 View

Hi friends, is there any master program in a trusted university not require TOEFL or IELTS Test

TOEFL or IELTS became the essential Key to log in the research field and some time getting the required score is very difficult despite the learning English Language is very easy in comparison...

22 March 2017 6,371 7 View

What is the best method for dissolving rocks for ICP-MS?

Hey Friends I need a clear method to dissolve variable rocks to determine elements (main and rare) by ICP-MS System. could you help me to get this method in clear steps thank you very much

26 April 2015 9,731 7 View

What is the efficiency of SPME technique in extraction? Does it have any effect on Mass spectrum? how much volume does it take in its fiber?

I am trying to use Solid phase micro extraction to extract dissolved PAH in hexane from water and I have some questions about its efficiency on My GC/MS System and which is the best method...

12 January 2015 465 8 View

Which brand of IC systems is better: Dionex, Metrohm or another?

I want to do some water analyses and the results should be in ppb concentration. I want to see which brand of IC is better or another system for analysis?

23 October 2014 4,362 34 View

Dear friends, How can I prepare Iron 1000 ppm standard solution? I found many methods for that and I am not trust any. plz, who is experience in Iron Analysis and determination by spectro photometer?, I need both of standard preparation and spectrophotometer determination, regards to all

Standard solution

20 June 2013 9,055 23 View

Can anynone explain why the absorbance of phenol is increasing by oxidation?

Phenol oxidation

12 March 2013 7,505 7 View