Fawad Ahmed

2 Questions 6 Answers 0 Followers

Questions related from Fawad Ahmed

I have been facing issue in determination of Iron in ppb level(<30ppb) in urea on ICP-OES?

We are determining Ni, Cr, Iron at ppb level in Fertilizer Grade Urea by ICP-OES Agilent 5110SVDV. We are digesting sample in 1 % HNO3(Analar) . The value of Iron comes lower in sample than blank,...

26 April 2017 5,108 2 View

Methanol in water (Issue)??

I am facing problem in making Method calibration curve (0-100 micro gram) by chromotropic method. First three points get linear but other points have absorbance lower than the former. Sequence of...

15 November 2016 761 8 View