Hello friends, which is the best method to determine water content in the gummies???? how to prepare gummy sample for water determination?

02 March 2017 1,976 3 View

What are the HPLC mobile phase additives & how to select a proper additive?

How to select proper mobile phase additive for better separation? And when to use the beta-cyclodextrin or (2-hydroxypropyl)-beta-cyclodextrin as mobile-phase additives?

07 August 2013 6,474 1 View

Can I replace sodium metaperiodate with potassium metaperiodate for analysis Mn by colorimetric?

Can I replace sodium metaperiodate with potassium metaperiodate for analysis of Mn by COLORIMETRIC tech.? Will it affect the results or assay of Manganese? Or will it interfere with colorimetric...

05 June 2013 7,045 6 View

How do I quantify Potassium Iodide?

I want to quantify Potassium Iodide but I'm not getting a reliable chemical or any other method for assay.

01 February 2013 7,584 1 View

How do I plot overlay of rphplc chromatograms in empower III software in a final result sheet with area, resolution, HETP & tailing factor?

I want to plot overlay of rphplc three std chromatograms in empower III software in a one final result sheet with area, resolution, HETP & tailing factor. How do I do that?

01 February 2013 4,143 0 View

How to identify, analyse & confirm the different concentrations of malt extract?

What is the method to differentiate the 2%, 10%, 20% malt extract?

01 February 2013 2,725 1 View

I'm trying to quantify amino acids by RPHPLC with UV detector, can anyone suggest a good method?

I have HPLC with UV detector & I want to quantify amino acids by RPHPLC, what is the best method with derivatization technique?

31 December 2012 3,132 33 View

Why mobile phase turn turbid? What shall I do to make it clear?

Dear all today I faced a problem while making mobile phase and the composition was A)potassium Dihydrogen phosphate(15g) + Di-sodium hydrogen phosphate(15g) in 1000ml water B) Acetonitrile...

31 December 2011 6,995 20 View

How do i get 100% release of ALA(alpha lipoic acid) from magnesium oxide granules?

dear all today I was carrying out assay of ALA granules in Magnesium oxide. I dissolved. granules in the glacial acetic acid but only 60% release I achived. then i tried in H2SO4 but the ALA...

31 December 2011 9,439 3 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Is there a classification scheme for rock cavities or caverns with respect to their size and shape?

The range of forms and sizes of cavities in rock is very big. Is there a classification scheme for rock cavities regarding their size and shape?

02 March 2021 4,511 3 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 to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View