How to convert 1.06mM to mM/mg?

hi I'd like to know how to convert 1.06mM to mM/mg of sample. I've weighed 100 mg of sample and I diluted in 1 milliliter of water. the molecular weight of the acid (sample) is 116.16g/mol thanks

04 May 2019 3,132 2 View

How to prepare 5 mL of a mixture of MeOH/DMSO/H2O (40:40:20, v/v/v)containing 0.1% HCl. ?

Hi, I have a doubt about this preparation: 5 mL of a mixture of MeOH/DMSO/H2O (40:40:20, v/v/v) containing 0.1% HCl. the 0.1% HCL is taking into account that all the volume (5 mL) is acidified...

04 May 2019 1,953 3 View

Which statistical test is suitable for comparing concentration of ellagic acid over time?

Hi could someone help me to know what statistical test to use for comparing concentration of ellagic acid over time, I did three measurements of ellagic acid for each time (5hours, 10h, 15h, 20h)...

09 October 2018 4,346 5 View

Can I use both methanol and dmso together to do dpph assay?

Hi could someone help me, I want to do DPPH assay but my samples are in methanol and dmso and I don't know if the samples and stock solution of dpph should be prepared in the same solvent because...

08 September 2018 1,104 2 View

How can I do TLC if I a have my sample with DMSO and they have a pH of 2.5?

08 September 2018 8,429 3 View

Sorry someone knows how many times do I have to measure glucose, triglycerides and cholesterol in mice to have good results?

thanks for your advice

06 July 2018 3,602 2 View

Someone knows a protocol to extract MUC2 of mice to make western blot?

I need to extract munc2 of mice (c57bl/6j) and I'm looking for a method to extract them, thanks

05 June 2018 3,964 1 View

What is the difference between measuring ghrelin in plasma than tissue?

I don't know the difference between both or which one is better

05 June 2018 9,973 0 View

How to know the appropiate age of a mouse for an experiment?

I want to use mice with normal weight

05 June 2018 1,364 2 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 solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

I want to performe MALDI-TOF MS for bacterial identification, I would appreciate it if anyone can tell me the matrix solution preparation protocol ?

based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...

26 February 2021 6,799 3 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

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

Can I use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography?

Hi! I would want to know if I can use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography. This column has a polyethylene glycol phase, but I can't find the manual to check...

22 February 2021 730 2 View

Can you perform the Murexide test on samples fixed in Formalin?

I have a fixed sample and would like to use the murexide reaction to test for uric acid composition. I no longer have fresh samples

22 February 2021 1,328 1 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

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22 February 2021 9,932 11 View