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 does yellowtail viscera oil show high acid value?

Dear colleagues, We are analyzing the Japanese amberjack or yellowtail viscera oil. The oil is showing very high acid value. Does anybody have experience/ explanation for this unusual result?

10 November 2017 8,454 2 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

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

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

RIA. How to measure?

When you use RIA, with a control the unknown sample with antibodies, you bare in mind the binding sites of the antibodies. However you still need to measure labelled antigen (radioactive) and not...

28 February 2021 2,133 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 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 compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 3 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 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

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

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