Dear all , i need answer for those question :How can you prepare and seprate nanobiomaterials, prepare of surface modification of metal particles ?

31 December 2015 3,625 3 View

Can anyone suggest a suitable solvent for GCMS?

06 July 2014 4,819 29 View

Inlet in GCMS

what's the function of inlet in GCMS , and what's the advantages of Multi mode inlet over other types ?

06 July 2014 9,020 1 View

How can I calculate LOD and LOQ for sugars in honey (fructose, Glucose ,Sucrose) when they are measured by HPLC , RI detector, NH2 Column?

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01 February 2014 9,191 8 View

What is the best LC - Column for carbohydrate analysis?

If I have the choice between 2 amino columns for carbohydrate analysis: Luna amino column from phenomenex and Pinnacle from restek which one should I choose?

10 November 2013 3,337 6 View

Does anyone have experience with amino acid determination of amino acids by GC-MS using a EZ-Fast kit?

Does anyone have experience with amino acid determination of amino acids by GC-MS using a EZ-Fast kit and its advantage over an amino acid analyzer.

08 September 2013 4,547 4 View

Citric acid, malic acid and lactic acid by HPLC

I need a standard method for the determination of citric acid, malic acid and lactic acid in antiseptics (detergents) by HPLC

01 February 2013 6,569 7 View

How can the lactose content in milk be determined using HPLC?

Looking for a method to do this.

11 December 2012 7,014 8 View

Rezex column

does any one use rezex column for carbohydrate analysis by HPLC?

09 October 2012 9,931 0 View

Rezex column for carbohydrates analysis

Does any one use rezex column for carbohydrates which is an ion exchange column? Is it more accurate than amino column for sugar analysis?

09 October 2012 6,167 13 View

What is the difference between L1 and L2 regularization in machine learning?

L1 and L2 regularization

28 February 2021 4,187 3 View

How the wettability of rock sample can be changed by ageing in pure hydrocarbon oils only?

I want to do wettability analysis of hydrocarbon oil (octane)/rock/surfactant solution system. but to do the analysis first I have to make rock surface oil-wet. Since hydrocarbon oil does not have...

27 February 2021 5,383 3 View

Why tick's salivary gland extract didn't run in the gel (SDS PAGE )??

Greetings, I want to make SDS PAGE for my sample (Tick salivery gland extract), I tried concentrations 10%, 12%. I also tried high molecular weight ladder. But the protein stopped at the top and...

25 February 2021 7,698 3 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

How can Gamma Ray API units be converted to CPS (counts per second)?

Oil and gas companies run gamma ray tool and take readings in API units while Gamma ray is also noted in cps, so how these units can be converted into each other?

24 February 2021 7,545 2 View

Is it possible to set a breakpoint at a specific DYNAMIC instruction using the GNU Debugger (GDB)?

Using GDB, it is straightforward to debug and monitor a target program by setting a break-point at a specific instruction, since the instruction addresses are known. However, we have two...

24 February 2021 1,598 2 View

How does the injection volume impact LLOQ and ULOQ in regression analysis (LC-MSMS)?

Hello, I have run into an issue that has sparkled a debate at work: is the LLOQ/ULOQ impacted by injection volume under the following circumstances: 1) Same dilution factor of all samples 2)...

23 February 2021 9,159 3 View

How to remove compound ( Europium complex ) from paraffin oil?

How can I remove my compound from paraffin oil? Mistakenly my compound fell in an oil. Compound = Europium complex

22 February 2021 5,667 2 View

How can we add reinforced thermoplastics with granules in injection molding machine?

I need to make an injection molding machine in which short fibers are to be introduced. Short fiber length and material properties are to be determined and also the material strength are to be...

22 February 2021 4,290 1 View

When I mix oil and NaOH solution, Why solid layer in the surface is formed?

During my trial for lubricant oil re-refinery process, I use NaOH as coagulant agent. After overnight of gravity settling, a solid layer in the surface was form. what product is that? since the...

22 February 2021 2,116 4 View