How to avoid the extraction of Arsenobetaine (AB)?

I need to extract the As (III) and As (V) in mixture of organic and inorganic As mixture or from seaweed. Are there any way to stop the extraction of AB and organic arsenic compound?

02 March 2019 1,556 4 View

Are there any methods to avoid the arsenobetaine (AB) in the seafood extraction?

I need to extract seafood and need to avoid the arsenobetaine extraction, Are there any chemical reaction or extraction method to avoid the extraction arsenobetaine?

02 March 2019 7,939 4 View

What are the factor involve to set the TVB-N level of fish?

EU regulation no 2074/2005 gave the maximum level of TVB for fish in 3 categories as 25, 30 and 35 mgN/100 g. I need to know what are the basic to set this level. Is that only organoleptic...

07 August 2016 3,415 2 View

What is the proximate composition of Chitala ornata (knife fish) flesh?

Do you any reference/literature of the proximate composition, especially protein content of Chitala ornata (Knife fish) flesh?

04 May 2016 6,832 1 View

Please be kind enough to comment this questionaire regarding the total diet study?

03 April 2016 3,493 0 View

Can you help me to the calculate following redox calculation of titartion vitamin C?

Here, I attached one method published for vitamin C determination, in generally Iodine solution used, but here, they use KI & KIO3? How to calculate I2 mol in here without standerdization or...

01 February 2016 5,839 3 View

How can I convert the dioxin value pg/g to WHO-TEQ?

Some authors give the dioxin concentration, pg/g and some gave the concentration pg/g WHO-TEQ. How to compare those values and how to convert TEQ to pg/g?

10 November 2015 7,260 3 View

Please suggest me the novel food chemistry, analytical application and areas which can do using FT-NIR?

05 June 2015 9,078 0 View

Can you give me the APHA method for trace metal analysis?

11 December 2014 1,292 3 View

Can you give me the best method for analysing MSG (Mono Sodium Glutamate)?

11 December 2014 3,192 8 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 to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 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

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 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

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View