Which PVA polyvinyl alcohol should I use for P inorganic determination with malachite green?

10 December 2019 0 275 Report

PVA Mw 31,000-50,000, 98-99% hydrolyzed OR PVA Mw 89,000-98,000, 99+% hydrolyzed

Badges
Science topic

More Krzysztof Gediga's questions See All

How to add the name of journal?

How can I add the name of journal where I have published my article ? This name of journal is: Wolni i Solidarni. Między Ideą a Praktyką.

27 April 2024 8,705 0 View

How should I interpret the points which plot above the LMWL on the d2H vs d18O bivariate plot?

So, I am unsure how I should interpret the situation when the majority (let’s suppose 3/4) of my data aligns above the LMWL, while a smaller part (suppose 1/4) aligns below the LMWL. I conduct...

03 April 2024 1,958 0 View

Can you recomand any good neural stem cell lines (rat, mouse or human)?

just line, company etc

13 November 2023 3,618 1 View

Are you interested in a conference celebrating the centenary of Forster's A Passage to India?

The International E. M. Forster Society invites you to take part in a conference celebrating the centenary of the publication of A Passage to India. The conference will take place in June 2024 in...

13 July 2023 4,280 19 View

What could cause Western Blot signals to suddenly start getting weaker with each trial?

Hello, We are currently measuring concentrations of protein kinase A (PKA) and its phosphorylated from (p-PKA) in sub regions of the hippocampus using α-tubulin as loading control. We are using...

24 April 2023 6,421 0 View

What is the most complex model?

Can you identify the most complex model? How many variables in the model make the model structure feasible?

12 March 2023 196 4 View

How can I compute the area between unique regions in a FEM model with tetrahedral elements?

Hello, I have a finite element method model comprised of tetrahedral elements. The model has a few million elements and a few hundred unique regions. I need to compute the statistics of i) which...

30 June 2022 8,125 2 View

Is a gradient mesh size possible in gmsh with .stl files without using a "Threshold" field?

Hello, I am creating polycrystalline microstructures for crystal plasticity FEM simulations. I use the DREAM.3D software to export .stl files that are then meshed using gmsh. This works well and...

20 December 2021 1,610 4 View

What is the best assay to measure viability of human macrophages?

Hello, I want to investigate the influence of certain drugs on the viability of human bone-marrow derived macrophages cultured in vitro. What viability assay do you find to be most suitable for...

26 April 2021 1,662 5 View

Where can I find MRI datasets with real images corrupted by heavy Rician noise?

I designed an algorithm for MRI data denoising which has good properties under heavy Rician noise (sigma is greater than 80). The method was tested on Brainweb's phantom and Matlab's ricernd()...

14 March 2021 1,829 4 View

Is there a method that I can measure alcohol dehydrogenase activity using NAD+ in enzyme extraction from plants?

17 July 2024 935 1 View

How to prepare alcohol foam with high alcohol content?

Hi everybody, I wonder is there a way to prepare foam from iso-propanol/water mixture? The content of this alcohol should be 70 – 80 w.%. I plan to use silicone-based surfactants, I have several...

15 July 2024 3,539 0 View

Why am I seeing only one initial maximum in torque-time curves for the fusion of PVC in a Brabender?

We're studying the stability and fusion behavior of multiple PVC compounds in a Brabender. After a few trials, we set the temperature at 195 °C and the rotor speed at 70 rpm. Samples differ in...

12 July 2024 2,768 1 View

How can I do photodetector application from Inorganic nanoparticles compound?

I have an inorganic nanoparticle compound I want to do a photodetector application from this compound, I do not have any idea, can anyone help me with this?

11 July 2024 135 1 View

Which other method other than Gas Chromatography can be used in the content determination of Alcohol in Pharmaceutical syrup?

Other than GC any other method might help.

26 June 2024 1,076 3 View

Why reaction order is changing with temperature? Is it a non elementary reaction?

I am performing catalytic metal supported benzyl alcohol reaction kinetics in presence of potassium carbonate base. Every time order change observed at lower catalyst conc. It showing zero order...

20 June 2024 7,100 2 View

What is the most likely driving force for the formation of the coinage heterometallic acetylide clusters?

When a homometallic cluster, Cu6L6, and a homometallic Ag8L8 cluster are dissolved in the DCM/Isopropanol system, they would form a heterometallic cluster crystal, Cu4Ag4L8, and no homometallic...

19 June 2024 2,484 2 View

What are the social consequences of excessive alcohol consumption, including its effects on family dynamics?

social consequences of excessive alcohol consumption

13 June 2024 1,248 1 View

What is the breakdown voltage/dielectric strength of Polyvinyl Alcohol?

I searched everywhere and I can't find a single definitive source, the only paper that I found was this one:...

12 June 2024 3,126 3 View

Industrial process for converting alcohol to acid?

What's your suggestion for converting a heavy organic alcohol to its corresponding acid (via oxidation or dehydrogenation)? Your industrial experience is appreciated.

12 June 2024 3,862 3 View