How to measure neurotransmitters with HPLC?

Hi everyone, Please can somebody help me? I would like a protocol and a method how to measure the neurotransmitters using HPLC (adrenaline, noradrenaline, serotonin, dopamine, glutamate) Thank...

12 March 2016 3,555 5 View

Can anyone use two sampling designs in a case control study?

In a case control study, systematic sampling design for case (with disease) and purposive sampling design for control (without disease non -case healthy individual) can both design be used?

14 December 2015 8,330 6 View

How can I reduce ketones by Daucus carota?

19 May 2015 9,421 4 View

What is the three dimensional external graphical representation of black hole?

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26 February 2015 8,461 3 View

No title

21 December 2014 4,409 4 View

Are there any researchers able to collaborate on the topic of transmutation of long lived fission product in fast reactor?

Hi My research area is the transmutation of long lived fission product in fast reactorI am looking for a collaboration in the same research axis

14 November 2014 2,496 1 View

How to extract the bioavailable chromium from the soil?

I would like to measure the bioavailable chromium of some soil. How do I go about extracting it? I have alkaline soil (with a pH of about 8.5).

11 March 2014 7,490 7 View

Protocol for an NADPH oxidase assay using NBT in tissue homogenate?

I want to quantify the NADPH activity in tissue homogenate using spectrophotometry. I am looking for the complete protocol to do this.

15 November 2013 4,627 3 View

Which buffers are used in the NADPH oxydase activity assay using cytochrome c?

for cytochrome c and NADPH dissolution

11 September 2013 7,085 2 View

How to identificate the structure of the textile colorants?

I have the references of this colorants, but I'd like to find their structures

01 January 1970 3,736 7 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

How do I determine the degree of polymerization of PEG 400 based on NMR integration?

Hello, I am working on the photocatalytic degradation of PEG 400. I would like to know if it's possible to determine the degree on polymerization based on NMR integration, or by the MW of the...

02 March 2021 6,186 3 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

POlymer+DMSO solution and moisture??

What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?

28 February 2021 6,516 5 View

How to reduce residual stresses in MD simulation?

I am working on a preparation of representative polymeric structures of some popular polymers, such as polyimide or PTFE for MD simulation, during which a single nitrogen or oxygen atom will be...

24 February 2021 8,105 3 View

How to identify what type of fillers are in a polymer?

Hello everyone, I have some PHAs blended with fillers and nucleating agents, yet I don't know what kind of fillers or nucleating agents. The producer has shut down and there's no way to get in...

24 February 2021 1,356 8 View

How can I selectively dry etch Ti on a polymer substrate?

24 February 2021 5,378 1 View

How to do a surface treatment of uncoated TiO2 with polymer?

Basically, I would like to know how to treat or coat on the uncoated bare TiO2 (Ti-OH rich) surface with polymer which has anchoring groups in the polymer structure like trimethoxygroups. What is...

21 February 2021 4,657 6 View