Zulkarnain Mohamed Idris

6 Questions 2 Answers 0 Followers

Questions related from Zulkarnain Mohamed Idris

MIP particles remain in suspension after centrifugation. Why?

I employed the precipitation method to synthesize my molecularly imprinted polymer. Despite attempting to centrifuge the particles at 4000 rpm for 20 minutes upon completion, the process proved...

23 December 2023 3,419 3 View

How exactly did we calculate of the area under the breakthrough curve for fixed bed column adsorption?

To find the total amount of solute absorbed, qtotal (mg g-1) was determined by the following equation (refer attachment): How did we actually solve the integration part by manual calculation? or...

19 August 2021 6,891 6 View

Should I use higher centrifuge speed or my polymerization actually did not work?

One of my sample (NIPs-non-imprinted polymer) couldn't settling down after centrifugation (4000 rpm). Might be due to very fine particles. So what I did, I let the samples to evaporate under fume...

07 December 2020 3,574 3 View

Should I use higher centrifugation speed or my polymerization actually did not work?

One of my sample (NIPs-non-imprinted polymer) couldn't settling down after centrifugation (4000 rpm). Might be due to very fine particles. So what I did, I let the samples to evaporate under fume...

07 December 2020 6,157 2 View

Is it possible to determine a selectivity coefficient (k) for single adsorbate for different types adsorbents?

I have prepared few types of MIP adsorbents (MIP_1, MIP_2, NIP_1 & NIP_2) where MIP_1 & MIP_2 are the imprinted adsorbents while NIP_1 & NIP_2 are the non-imprinted adsorbents for the target...

31 March 2020 1,989 3 View

Preparation of amoxicillin salt from tetrabutylammonium bromide?

Amoxicillin (AMOX) is difficult to be dissolved in solvents. However, I need to prepare the AMOX-MIPs using acetonitrile as the porogen. I did read one article where the AMOX can be dissolved in...

20 June 2019 3,343 0 View