How is the maximum permitted level of Arsenic (As) and Copper (Cu) in fish muscle?

Dear RG members, Could anyone give me the information about the maximum Arsenic (As) and Copper (Cu) level in fish recommended to eat? Thanks in advance.

01 February 2018 9,147 1 View

What to do when citations are not detected by RG?

Some researchers cited my publications in their paper published in reputed journals (eg. Thomson Reuters indexed, Elsevier published, etc) but Research Gate does not show this, even though long...

31 December 2017 2,349 12 View

Why do phospholipids show high acid values?

I am evaluating the acid value of phospholipids extracted from salmon by-products. Compare to normal lipid, phospholipids show very high acid value (around 30 mg KOH/g). How can I explain the...

09 October 2017 7,204 5 View

How can I measure peroxide value?

How can I measure peroxide value of oil accurately? Can anyone suggest me the method in detail, please?

03 April 2017 9,308 0 View

In which fraction does 2-MAG elute?

31 December 2015 1,102 2 View

Why is it difficult to control viruses?

We can control bacteria and fungus easily whereas it is very difficult to control virus. Even, there is no control of some viral diseases and virus, e.g., HIV. Why is it difficult to control viruses?

01 January 1970 6,926 14 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

How to remove DCU and HOBT from my reaction?

I am doing a acid and a chiral amino alcohol reaction using DCC and HOBT in DCM or THF? Can anyone suggest me how to remove DCU and HOBT from a reaction mixture??

28 February 2021 2,153 1 View

What is the most common number of epitopes in an multi-epitope Vaccine?

hi everyone, I'm interested in the field of vaccine design specifically multi-epitope cancer vaccines , I want to know if there is a minimum and maximum number of epitopes we could use in a...

27 February 2021 3,882 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

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 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

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View