Hossein Poorhemati

8 Questions 13 Answers 0 Followers

Questions related from Hossein Poorhemati

What reaction causes the blue color which occurs in carbazole assay for uronic acids?

a quantitative assay for hyaluronic acid detection is carbazole assay. During the assay a blue color appears. I need to know what causes this color? I need the whole mechanism of the assay.

10 October 2017 6,037 2 View

How can I calculate the min height of a tank (which is connected to a vacuum pipe line) to make sure that no liquid would enter the pipe?

in a continuous system, the pressure is 3 mbar. this pressure is produced by using an ejector at the end of the pipe line. in the middle of the process there is a tank which has liquid and vapor...

30 March 2016 7,189 2 View

What is the most eco-friendly and safest choice for municipal sewage sludge treatment? (in case of no previous wastewater treatment)

Imagine several pool of wastewater where all the water is evaporated under intense sun-light and there is just sludge. so it may contain more pollutants than the sludge from a wastewater treatment...

08 March 2016 3,145 5 View

What is the best way to separate terephthalic acid from water?

There is a pool full of water and terephthalic acid and I need to find a way to separate the acid. The terephthalic acid is almost deposited but any violent move could cause turbulence and result...

01 June 2014 5,070 2 View

I need to find several economic solutions for reusing PP (polypropylene) waste - any thoughts?

I should suggest a way to use PP waste for producing value added products so that it becomes economic to gather and processing them.

30 April 2014 4,906 8 View

Can anyone provide a source including spectra table of FTIR-ATR analysis for interpretation of the results. Are they the same as FTIR?

I had samples that because of their cohesive nature, it was not possible to do FTIR analysis. So someone suggest me to use ATR analysis. Now I want to interpret the analysis results and I need a...

18 November 2013 4,504 13 View

What analysis can I use to determine whether the latex of a plant includes 1,4 cis polyisoprene?

I have a latex and I need to know, if I can get any natural rubber out of it. I did FTIR, but I couldn't find any articles to indicate the exact peak number, which shows the availability of 1,4...

09 October 2013 7,075 3 View

I need an inhibitor to stop possible bacterial growth in my samples after filtration, because I want to do UV analysis of all samples in one day.

I use these organisms to remove phenol and phenanthrene.

08 April 2013 5,351 3 View