Ahmad Zaheer

4 Questions 4 Answers 0 Followers

Questions related from Ahmad Zaheer

Effect and impact of pH on metal/nutrients (Zn, Cu, Mn etc) testing on Atomic Absorption spectophotometer?

The standard of different nutrients/metals has a pH between 2 to 4 and when we prepared the sample, sample had a pH between 5 to 7. When we ensure the pH of the sample is within the range of pH of...

28 February 2024 7,635 1 View

What is the best method to extract oil and CBD (cannabidiol) from leaf, flower and seed of hemp?

We have used chloroform for cleaning and for extraction of used N hexane. We have also tried absolute ethanol. But quality and purity of oil is not good. Kindly help me in this regard

06 May 2019 4,946 3 View

How to reduced pH, Conductivity, Salinity and Total Dissolved Solids in irrigation water?

There is lot of methods mention in literature to clean water but I want to know in bulk. How we can treat water from tube-wel/ turbine etc?

21 January 2019 8,619 7 View

Difference between spp. and sp.?

Mostly spp. use for plural species and sp. for singular species. In manuscript some time people use spp for plural strains of same species. Can we use spp. for plural strain from single species???

05 January 2016 7,996 54 View