Analytical Chemistry

Analytical chemistry is the study of the separation, identification, and quantification of the chemical components of natural and artificial... | Contact experts in Analytical Chemistry to get answers

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Questions related to Analytical Chemistry

For the Perrin model, what is the significance of a small or large sphere of action?

I understand that the radius of the sphere of action in the Perrin model is defined as the distance where there's 50% quenching. But what does it say about quenching efficiency / ability when one...

03 March 2018 9,053 0 View

What are the techniques used in sample preparation in analytical chemistry?

Sample preparation refers to the ways in which a sample is treated prior to its analysis. Preparation is a very important step in most analytical techniques, because the techniques are often not...

03 March 2018 5,245 2 View

HOW can you minimize the tailing factor in chromatography?

Tailing factor is very important in analytical chemistry because it is explain the sharpness of the cinematographic peak

03 March 2018 3,172 1 View

How I Can make input fil of gaussian withe Pseudopotential for different atoms in the lanthanide complexes?

hello i want to calculate optical properties of lanthanide complexes with gaussian 09. so i take a basis sites of lanthanide atoms from this site: https://bse.pnl.gov/bse/portal but i found...

08 February 2018 853 8 View

Hi all. Is there any relationship between Particle size and volume of a Unit cell. Does increase in volume of a cell has any effect on particle size?

02 February 2018 2,943 0 View

Yeast fermentation medium recipe??

Can anyone please explain what is a fermentaion medium and a yeast suspension and how to make them? I have attached the paper that these two are mentioned and I have highlighted them in the...

04 January 2018 3,258 2 View

Please, is this true that Hydrongen and Oxygen can be interact to generate water using induction coil interaction???

01 January 2018 3,730 2 View

Yeast fermentation medium recipe??

Can anyone please explain what is a fermentaion medium and a yeast suspension and how to make them? I have attached the paper that these two are mentioned and I have highlighted them in the...

01 January 2018 9,655 3 View

What is the unit of concentration in Aldrich IR library?

I am checking the Aldrich Infrared library of compounds. And for HCHO molecule, it says "37%, U.S.P.". Is anyone familiar with the unit and meaning of 37% here? Is this...

01 January 2018 791 2 View

Can the Agilent 7890A analyse CH4 and N2O?

Can the Agilent 7890A with the ECD and FID only analyse CH4 and N2O gases. I hear theres need for an extra unit (Green house gas analyser) but without it is still possible to do the analysis?

13 December 2017 4,798 4 View

Does analytical chemistry's development (dosage reached ppt (ng / kg) instead of ppm (mg / kg)) influence development of purification processes?

12 December 2017 4,110 10 View

How fine measuring pH?

Hello. Usually I prepared a citrate lead by Reynolds, and I know what it must have a pH=12.0±0.1, otherwise it's not work well. How I can fine measure a pH in this solution, without pH-meter?

12 December 2017 7,845 5 View

Can the Agilent 7890A analyse CH4 and N2O?

Can the Agilent 7890A with the ECD and FID only analyse CH4 and N2O gases. I hear theres need for an extra unit (Green house gas analyser) but without it is still possible to do the analysis?

12 December 2017 4,757 5 View

What's the best way to generate calibration curves for an inductively coupled plasma-mass spectrometry (ICP-MS) device?

An inductively coupled plasma-mass spectrometry (ICP-MS) device works by impacting ions on a dynode of an electron multiplier. The electron multiplier acts as a detector. When the ions impact the...

12 December 2017 2,742 6 View

Does the allene and alkyne form of the same compound will show similar or different physical properties?

Recently, I tried to synthesize one organic intermediate having carbon-carbon triple bond. After recording its proton NMR, I came to know that it has a small amount of allene form also. My...

12 December 2017 7,266 3 View

How can I model a open cell foam with Solidworks aoftware?

I want to model a open cell metal foam with solidworks software. Can anybody help me?

03 December 2017 1,702 2 View

Is caffeine a primary standard in analytical chemistry?

I want to use caffeine in a research, but I need to know if it is a primary standard or if I have to standardize it.

28 November 2017 1,652 3 View

Is caffeine a primary standard in analytical chemistry?

I want to use caffeine in a research, but I need to know if it is a primary standard or if I have to standardize it.

11 November 2017 433 5 View

For a non-conducting sample, observed at low KV's in SEM, why does a region with less thickness appears bright as compared to the one with higher?

For a non-conducting sample observed in SEM at low KV's (secondary electron imaging mode) , why does a region with lesser thickness appears bright as compared to the one with higher thickness.

04 November 2017 4,531 5 View

How can I make the alkylation reaction of amine with alkyl halide?

I want to react the alkyl halide with hydrazine hydrate. If there is any proposed procedure to make it?

15 October 2017 7,529 2 View

Hello Everybody, how I can detect and quantify lithium from the aqueous solution of its chlorides following some electroanalytical method?

analytical chemistry

10 October 2017 5,599 2 View

Accepted range of relative recovery?

The recovery for accepted range in analytical chemistry is 70-120%. Then how about relative recovery (recovery of sample / recovery of reference)? Is it still 70-120%?

10 October 2017 3,580 12 View

How I can differentiate between assay, protocol and method?

Analytical Chemistry

29 September 2017 7,635 5 View

How is it possible to determine the complexation of a polymer with iron oxide nanopartilces through potentiometric complexation?

Is it possible to track the complexation behavior of a polymer with an aqueous dispersion of iron oxide (Fe3O4) nanoparticles through potentiometric complexation? And if yes, is it also possible...

13 September 2017 5,279 3 View

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