How do I make up a 0.01M Na2HP04/NaH2P04 solution?

How do I make up a 0.01M Na2HP04/NaH2P04 buffer solution, pH adjusted to 7? Both chemicals that I have on hand are anhydrous. The molecular weight of Na2HP04 is 141.96 g/mol and the molecular...

10 September 2019 5,524 3 View

Which solvent could dissolve glass fiber, but not carbon fiber. I am looking way sorting the carbon fibers from hybrid mat(Cf/GF) ?

In my research i want to recycle carbon fiber coming from hybrid mat waste. The hybrid woven fabric contains glass fiber yarn and carbon fiber yarn.

10 July 2019 1,716 4 View

How would you test the effectiveness of a preservative in animal feed?

How would you test the effectiveness of a preservative added to animal feed? I've had a look at the preservative efficacy test used for pharmaceutical products: where the preservative is added to...

12 September 2018 6,070 4 View

Can someone recommend a bio-assay system?

Can someone recommend a bio-assay system? I am looking to test a variety of liquid antimicrobial agents against bacteria and moulds.

15 March 2018 219 7 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

What are the values needed for gabor filter's parameter for cifar10 data?

Hi, I implemented a code to gabor filter cifar10 data but the images after being filtered and stacked are not clear like the original images. I think the problem is in the way I am using the...

03 March 2021 6,317 1 View

Can you share me how teacher education is managed in your respective national educational system?

I feel that the practice in teacher education in my country is below the expected performance level due to very poor management system. Hope I will learn something from your experiences.

02 March 2021 1,516 4 View

How to calculate Total Flavonoid?

I analyzed flavonoid total spectrophotometry, the procedure as below: 2 ml supernatan added 5 ml dd.H2O, then added 0,15 ml NaNO2 5%, 5 minutes later added 0,15 ml AlCl3 10%, After 6 minutes,...

01 March 2021 6,722 1 View

Which database would give me this list of chemical components?

Dear colleagues: I would like to know if anyone knows of a database that gives me the parameters pH, K, K, Mg, P, C, N, Zn, Cu, Ni and Cd of common foods. I find a lot of information of proteins,...

26 February 2021 5,525 3 View

Where i will get the Desmodium and Napier grass seeds?

26 February 2021 975 4 View

Is it Ok to decline to write a chapter for a IntechOpen to the lack of experience?

I have been asked by IntechOpen to write the chapter for a book they are going to publish, but as I don't have enough experience in the area they proposed me to write I declined their offer. Now...

24 February 2021 2,802 4 View

RNA-seq DEGs downstream analysis and reporting in literature?

I used EdgeR to get the list of DEGs (differentially expressed genes) from my liver RNA-seq experiment. I have done the gene overrepresentation and GSEA based pathway analysis. I am currently...

23 February 2021 8,969 1 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

What are the ranges of four diffterent poles of butterworth filter for ECG signal?

Hi, Can anyone please tell me what are the ranges of four different pole orders such as first order, second order, third order and fourth order respectively of butterworth filter for ECG...

23 February 2021 2,554 3 View