Method development of paracetamol oral suspension ?

Hi Dear Actually, i am trying to develop the related substances method for paracetamol oral suspension in RP HPLC and i am getting small peak in the diluent at the RT time of paracetamol. I run...

02 March 2019 4,276 3 View

Force degdradation for pharmacutical product in method developmenet?

can anyone suggest as I cam across different paper doing the acidic and basic and stress oxidation for 60minuties on top bench and some leave for 7 days. Can anyone please suggest why there is...

10 November 2018 4,157 0 View

Capacity Factor in HPLC chromatography?

can any one share their expertise in Capacity Factor, I developed the impurities method and the asymmetry is about 1.0 for all the impurities and now I have been asked it should be more than 2 the...

10 November 2018 8,066 0 View

Does anyone help in paracetamol impurities method?

I am trying to develop method for paracetamol impurities in oral suspension,at the moment I am using 20mM phosphate buffer but everytime the same mobile phase and same solution give me different...

10 November 2018 6,706 0 View

Can any one please tell me which other statistics can be used for IC50?

04 May 2016 5,182 2 View

How can I increase the expression of desired receptors?

Does anyone have any idea if estrogen (hormone) is fed to cell for certain amount of weeks and will it increase the expression of estrogen receptors (ER)? And can anyone send me paper for similar...

02 March 2015 3,193 2 View

Formic acid or tritiated water?

11 December 2014 3,009 0 View

Can any one help with TLC mobile phase of androstanedione?

Since, I do not have standard steroid (Androstanedione), I was wondering that if any one can tell me what is the TLC mobile phase for androstanedione and is it UV-active or not. I want to check...

11 December 2014 484 3 View

Does any one know which cell line expresses 5-reductase enzyme?

Does any know whuch prostate cancer cell line express 5a-reductase enzymes

11 December 2014 7,447 3 View

Can anyone knows why highly fat content food is risk of cancer, what rational is involved?

Fatty food

10 November 2014 3,678 0 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

How to compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 3 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

How to prepare a thin polymer film by post-polymerization/crosslinking?

24 February 2021 2,362 5 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

Any easy method of analyzing vitamin D in foods by HPLC?

Looking for method of extracting and analyzing vitamin D in foods by HPLC

24 February 2021 7,524 7 View