07 July 2013 1 6K Report

Dr 6000

More Ahmed Mahfouz's questions See All
How can I Find the lowest structures of Gold nanoclusters (Au2, Au3, Au4) based on B3LYP/LanL2DZ method?

Dears I need to solve this problem urgently my regards

10 November 2018 2,879 3 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?

09 October 2014 3,266 37 View

Does the normal error occur in preparation of VOC standards during auto dilution?

hello friends, in preparation of VOCs standards, there is a normal error occurs, what about auto dilution? I am asking about separated auto dilution not the fixed with instruments, hope to find an...

08 September 2014 4,657 0 View

Metrohm And Dionex are the famous IC systems, but they are too much expensive; does anyone have another Cheaper IC Brand with high quality results?

.

10 November 2013 421 7 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

05 June 2013 760 24 View

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