HPLC method validation?

Dear Dr's and researchers what is the best parameters to make method for a new Schiff base derived from benzocaine?

10 November 2018 6,738 8 View

Schiff base preparation?

Dear Dr's I prepare Schiff base; firstly lemons color appear, after 4 hrs "i forget it more than 1 hour" the color change to brown; are their a relationship between time and color?

09 October 2017 2,708 6 View

Molar ratio?

anyone can help me to use conductivity method to determine molar ratio of Schiff base-metal complex? i need reference please?

04 May 2017 755 0 View

How i can separate phosphogypsum chemically?

How i can separate phosphorous from gypsum?

02 March 2017 7,470 1 View

Sodium borohydride?

Dear Dr's: I would like to ask about the effect of NaBH4 on a schiff base have an ester group; does the ester affected by NaBH4?

01 February 2017 5,358 4 View

White Schiff base ?

Are their a Schiff base with white color?

11 December 2016 7,243 1 View

Indicator film used to detect some metals by make complexation with it?

09 October 2016 7,036 3 View

No title

uv

05 June 2016 5,121 0 View

Is carbonic acid an organic acid or an inorganic acid?

if i say H2CO3 ( called carbonic acid) does'n exist but it is a solution of CO2 dissolve in water and both of them are inorganic compounds so it is an inorganic compound???

10 November 2015 9,376 3 View

Dear Dr's i hope to aske about fluorescence?

01 January 1970 2,732 3 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

Which transition metal salt precursor is best for doping? Why?

I would like to synthesize a transition metal doped TiO2 via solgel method. Hence, I would like to know which metal salt precursor to choose among Chloride, Nitrate, and Sulphate. A clear...

27 February 2021 4,285 3 View

It is necessary to reflux the Schiff base and metal salts to obtain metal complex??

24 February 2021 9,166 3 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

When I reacted Bidentate NS Schiff Base with metal salt (M-Cl2) in +2 oxidation state in proportion of (2:1) , getting sticky product ,, why?

When I reacted Bidentate NS Schiff Base with metal salt (M-Cl2) metal chlorides in +2 oxidation state in proportion of (2:1 Schiff base &metal salt) , i was get sticky material Why ? ---~...

21 February 2021 7,970 5 View

Any Homemade Organic Synthesis Practices?

Hi everyone, I am a teacher of Heterocycles Synthesis, Is there a home practice that you recommend for undergraduate students? A simulator would also be useful Due to the pandemic, students...

18 February 2021 2,769 4 View

How to predict the reaction pathway for electro organic synthesis?

Can anyone recommend some any software/models available that can predict substance reactivities and the reaction yield under a specific set of reaction conditions process and proposing pathways to...

17 February 2021 2,383 3 View

Has anyone encountered any problems with abm good microRNA primers for quantification of mature miRNAs?

I've been trying to quantitate mature microRNAs in 293T cells with and without 'X'. 2ug of total RNA (isolated by Trizol method) is converted to cDNA using All-in one microRNA cDNA synthesis kit...

17 February 2021 8,986 2 View

How to measure acetic anhydride solution with 18M sulfuric acid?

I am doing research on the synthesis of paracetamol. I am preparing acetic anhydride solution with a few drops a sulfuric acid and wish to measure the pH of this solution. However my pH meter...

14 February 2021 8,699 3 View

Best synthesis method for large scale silver nanoparticle synthesis with high yield?.Best post processing steps after nanoparticle synthesis?

I have chemically synthesized silver nanoparticle to combat microbes on wound site. I have used many methods of synthesis, but I found minimal field of silver NP product.I am getting whitish...

11 February 2021 4,964 13 View