Hy, can you suggest a method
to quantify acetic acid in aqueous bye GC-FID?
Thsnks in advance
Hy, i'd like to quantify isocyanate in ambient air with HPLC /UV, as suggested in NIOSH method 5551, after extraction from sampling tube containing an inert support impregnated with...
07 August 2016 9,258 1 View
Good morning, can you suggest a method for Sulfur trioxide pyridine complex determination? Thanks in advance Stefano
05 June 2016 1,089 2 View
May you suggest a method to quantify organic selenium in food? I thought to express it, as the difference between total selenium and inorganic (water soluble forms), but i'm not sure to extract...
02 March 2016 8,337 5 View
Hi, may you suggest a rapid method to quantify fiber in food without enzimatic steps? May i use the percentage of fat, ash, moisture and carbohydrate to quantify them? Thanks in advance Stefano
02 March 2016 4,746 4 View
May you suggest a method to produce hyaluronic acid from wheat on pilot scale? Thanks in advance Stefano Salvatori
02 March 2016 6,573 3 View
Hy may you suggest any sellers for adamsite (CAS #: 578-94-9) and protocol analysis in soil and water matrix? Thanks in advance Stefano
04 May 2015 6,016 0 View
May you suggest a reference about the correct choice of column and stationary phase in HPLC? Thanks in advance Stefano Salvatori
02 March 2015 6,291 4 View
I need to quantify phosphorous in leaves; usually to quantify other elements (like Ca, Na) we turn to ashes the leaves and analyze the acidic solution by ICP-OES or ICP-MS, but i've the suspect...
02 March 2015 10,018 14 View
Do you know a method to quantify Inulin in food? Thanks in advance. Stefano.
01 February 2015 8,369 3 View
I'm looking for a method to quantify citric acid, folic acid, sodium bicarbonate and leonardite simultaneously in a complex matrix fertilizer ? Thanks in advance Stefano
31 December 2014 9,746 3 View
I need to do some experiment with it in liquid form.
07 August 2024 613 3 View
Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.
07 August 2024 8,782 3 View
I am trying to recover liquid CO2 from a mixture of 0.6 CO2, 0.3 N2, and 0.1 O2. My aim is to recover about 99% liquid CO2 at the bottom of the column and make sure the amount of gaseous CO2...
06 August 2024 4,611 0 View
I have prepared a liquid broth containing Yeast (S. Cerevisiae) that i need to add from it to fermentation media of lignocellulosic hydrolysate. I need to know based on what parameters do we add...
06 August 2024 662 1 View
Palmitic acid presence in aqueous fraction
05 August 2024 8,624 4 View
Dear readers, Thanks for your attention. I am wondering about the health economic problem of quantifying the value of interventions which a) prevent, b) improve symptom profile and c) ultimately...
05 August 2024 3,246 1 View
I used humic acid at 0.044 g/kg soil in my pot experiment. But finally, I have to recommend kg/ha. Each pot's soil weight was 11 kg. What is the solution?
02 August 2024 7,186 6 View
What is the best way to freeze the rat brain - liquid nitrogen, Dry ice , isopentane - after isolation for later protein investigation by Elisa?
01 August 2024 1,722 1 View
I am attempting to conjugate PEG to an amino acid at the C-terminus, for the purposes of producing nanoparticles. I have been told that PEG modified with amine groups can be used for this purpose,...
31 July 2024 2,033 1 View
I am currently working on a project involving liposomes and need to determine the maximum volume of siRNA that can be added to a 2.5 mL liposome solution with a total lipid concentration of 10...
30 July 2024 6,420 1 View