Do you know a method for alginic acid determination in algae extracts?

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SAcetic acid analysis in liquid wastes?

Hy, can you suggest a method to quantify acetic acid in aqueous bye GC-FID? Thsnks in advance

03 April 2018 5,831 0 View

How can i quantify isocyanate in ambient air after sampling with glass tubes containing an inert support ?

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

Sulfur trioxide pyridine complex determination?

Good morning, can you suggest a method for Sulfur trioxide pyridine complex determination? Thanks in advance Stefano

05 June 2016 1,089 2 View

Organic selenium extraction?

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

Can I use gravimetric method for fiber determination in food?

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

Hyaluronic acid from wheat ?

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

Do you know sellers of adam site?

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

Correct HPLC column?

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

How can I quantify macroelements in leaves?

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

Are you familiar with an Inulin determination method?

Do you know a method to quantify Inulin in food? Thanks in advance. Stefano.

01 February 2015 8,369 3 View

Could it be a cell culture contamination?

Hello everyone! I observed in my culture (htert-RPE1 cells) an orange- red particle at the bottom of the dish. It is visible to the naked eye as a very very small red dot. Could it be a...

09 August 2024 2,824 3 View

Is there any cases algae not using the nutrient from the wastewater and grow normally?

I am working on microalgae cultivation using waste water. The initial concentration of nutrients were less but the microalgae has achieved biomass growth of 2 g/L. The final concentration of...

08 August 2024 4,812 2 View

Separation of organic acids-HPLC?

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

Determining the worth of a point improvement in Hamilton Depression Scale?

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

How to isolate lymphocytes from mouse spleen?

I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...

04 August 2024 9,913 7 View

Does long-term culture of murine Monocytes result in macrophage differentiation?

Hi, I am isolating monocytes from the bone marrow using the Mouse Monocyte EasySep kit. I want to treat these cells and monitor expression of specific markers over the course of 10 days. I will...

04 August 2024 7,282 2 View

Good Day, can I ask for your help on the questionnaire that I want to adopt?

I am currently looking for a questionnaire that relates with my study which is The Effectiveness of Organizational Culture towards employee retention rates

03 August 2024 3,505 6 View

Can i quantify a nanoparticle encapsulated in cell culture medium by hplc?

Hello, if you made a transwell assay where you incubate the cells with a nanoparticle-encapsulated drug and considering that in the oposite compartment you'll have both the free and encapsulte...

03 August 2024 2,730 1 View

What is the problem with these tissue culture plants?

All plants are green but some of these plants becomes yellow. I did not found any reason. Please help me to find out the real problem.

01 August 2024 589 4 View

Found this object in the cell culture - do you have any suggestions what it might be?

Dear researchers, Today, we found this object in one of the wells of a 96wp culture plate. The plate contained MEC-1 cells and GelTrex. I am quite curious what this is (because it's not cells). Do...

01 August 2024 2,250 2 View

Anthony Verschoor

If it is non-quantitative, staining with Alcian blue is a useful method.

Stefano Salvatori

It' s a quantitative analysis!

Fikrat M Hassan

May be the following link useful for you:

http://dx.doi.org/10.1007/s11947-008-0082-x

Cory Larsen

Try: C-C Hung and P. Santschi, Analytica Chimica Acta 427 (2001) 111-117

Also: Handbook of Food Analyitcal Chenmistry, Volume 1 (Water, Proteins, Enzymes...), Section E3.3

http://onlinelibrary.wiley.com/doi/10.1002/3527600035.bpol6008/abstract?userIsAuthenticated=false&deniedAccessCustomisedMessage=

You may want to expand your search terms also. Try Uronic Acid(s).

thank you Cory