Syed Asim Hussain Shah

7 Questions 13 Answers 0 Followers

Questions related from Syed Asim Hussain Shah

Why UV spectrometer show negative value for my concentrations?

Hellow everyone I made stock solution for 5 samples and got very good celebration for each sample .but suddenly from last week when i need to proceed my concentration now UV is showing negative...

07 September 2021 7,169 3 View

I am looking for any reference related to gold Nano particle green synthesis using weight concentration (m/v) as one of optimization parameters?

It is hard to find any reference related with gold nanoparticle synthesis using plant extracts that were extracted using ethanol solvent and has weight concentration (m/v) as one of its optimizing...

23 May 2021 1,091 3 View

I want to obtain deep eutectic solvent with Betaine chloride +MAA +Water but betaine is not dissolve in MAA to form homogeneous solution?

According to the literature I am using a 1:2:1 ratio of Betaine chloride +MAA +Water but a clear solution not obtained at 90 degrees even kept for 5 hours.could someone suggest?

18 April 2021 2,838 3 View

Is there any difference between LC and HPLC ? CEC HPLC CLC i am bit confused about these ?

whenever I search for clc its always come out HPLC ..

09 March 2021 7,499 3 View

I am unable to get the polymerize product Magnetic Molecular imprinted polymer (MMIP)?Details are in description ?

I am following method but washing carried out in centrifuge instred of soxclet Synthesis of the M-MIP was performed in four steps: preparation of magnetic nanoparticles (Fe3O4), modification...

09 March 2021 2,586 3 View

I am unable to get proper OH peak upon modification of iron oxide nanoparticles with TEOS some one can elobarete the problem??

I have synthesis iron oxide nanoparticles need surface modification when introduce TEoS I got silane layer but not Oh group .Since this Oh group is necessary for further introduction of double bond .

23 January 2021 1,833 4 View

I want to mix Choline chloride with MAA molar ratio 1:2 but i am stuck in calculations..some one please elobrate that how to solve the problem?

ChCh MW =139.62 MAA MW=86.06

09 September 2020 685 2 View