Hi. Anyone have come across this issue where the baseline is shifted like this when running the hplc? Is it due to contamination or else?

Mobile phase used is 5mM sulphuric acid , type of column is Bio-Rad Aminex

09 July 2020 9,321 7 View

Hi. Do you have any idea why the peak looks like that as I guess this is the solvent peak produced?

I have run the levulinic acid standard through hplc-refractive index detector with column and detector temp at 63 and 50 degree respectively. Mobile phase used is 0.005 M H2SO4 at flow rate 0.6...

12 November 2019 6,348 2 View

How Transfer data/image from GPU to FPGA using MATLAB ?

Currently I Already did my work to transfer image on GPU and CPU. Apart from that, i try to expand the work with FPGA. Unfortunately, i still searching the suitable method how communicate CPU and...

10 October 2018 2,997 3 View

What is the significance of soil microbial biomass N:P value in the agricultural soil?

The microbial biomass ratio is considered as an important indicator of microbial nutritional balance. High microbial biomass C:N ratio for example, usually indicates unbalanced nutritional...

12 February 2018 1,012 6 View

Which oneis better QTOF or QTRAP?

Dear All Which one is better to determine phenolic compound inside the dragon fruit peel either use QTOF or QTRAP? ESI QTRAP is normal resolution but with ion trapping for better spectrum...

21 April 2017 1,180 7 View

Is there any relationship between antioxidant and antimicrobial activity?

Dear All Kindly to ask you, is there any relationship between antioxidant and antimicrobial activity? since I already extract active compound from dragon fruit peel using distilled water as a...

01 September 2016 4,511 14 View

How to write a good thesis abstract?

What are the components should have in writing a clear and good abstract?

06 June 2016 6,780 24 View

Hi, one question related to correlation. Is it possible for me to execute correlation with a sample n=24 to see the relationship between variables?

26 April 2016 3,619 28 View

What is the recommended amount of PCR product to load on DGGE?

I performed PCR which targets bacterial 16S (using GC968f/1401r) and fungal 18S (using NS1/GCFung), each produced ~400 bp and ~350 bp, receptively. The DNA was extracted from soil sample.Can...

22 April 2016 3,134 3 View

No title

My soil sample is of sandy loam. I've done the extraction protocol several times, precisely as stated in the manufacturer's instruction manual but I did not get any good result. The concentration...

18 March 2016 1,779 2 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Is anyone working on a project focused on immigrants/newcomers working in the hospitality industry and how they have been impacted by COVID?

The on-going Covid-19 pandemic has had devastating economic effects on many industries. However, few have suffered to the same extent as full-service restaurants. Numerous studies have shown that...

24 February 2021 9,496 4 View

What is the optimum time and temperature of blanching and pre-frying potato for frozen fries?

I am helping a local home industry for developing frozen fries from their local farm. I want to know what is the optimum blanching and pre-frying temperature and time for processing. Please also...

23 February 2021 1,616 5 View

What is the biochemistry of acidic solvents for phenolics extraction in strawberry?

I am using the Folin-Ciocalteu method for analysis of total phenolic content in ripe strawberries. I've read several protocol that suggest a methanol/H2O/formic acid (80:19:1) extraction solution....

22 February 2021 6,560 3 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

No title

The Folin-Ciocalteu method is an electron transfer based assay, and gives reducing capacity, which is usually expressed as phenolic content. Can anyone share any reference paper where total...

13 February 2021 3,782 3 View

R/Python package for time-intensity or progressive profiling in sensory evaluation?

Hi I've been looking for a stat package for my sensory evaluation data (progressive profiled which is a multi-timepoint version of descriptive analysis). Is there any available one to...

08 February 2021 9,170 3 View

What is the best visualisation solvent for xylooligosaccharides using TLC?

I am interested in using TLC to detect non-linear xylooligosaccharides. What would be the best visualisation solvent? Would aniline phthalate solution be suitable? I have also seen people...

02 February 2021 7,748 3 View

Are any database collected cell penetrating anticancer peptides ?

Dear researchers, Anticancer peptides(ACPs) with cell-penetrating properties can enter to cytoplasmic space of cancer cells and induce cell death. but, I could not find the database that...

29 January 2021 707 3 View

How to calculate Total Phenolic Content and express it in mg GAE/kg?

26 January 2021 3,847 7 View