What are the most common protocols to quantify arsenic using HG-AAS?

I want to determine arsenic (both arsenite and arsenate) concentration in water, soil and rice samples using HG-AAS. Kindly suggest some routine methods.

07 August 2018 9,116 1 View

Can anyone please provide me with a plasmid vector with GFP tag ?

06 July 2016 4,540 2 View

What is the information obtained from SAED pattern of nanopoarticles?

The SAED pattern for the nanoparticles.

04 May 2014 2,980 47 View

What information is obtained from SAED pattern of nanopoarticles?

What information is obtained from SAED pattern of nanopoarticles?

04 May 2014 6,533 3 View

How XRD peaks change with different orientation of planes in nanopoarticles?

What is the relation between XRD peaks and orientation of planes?

04 May 2014 1,200 13 View

How does the size, shape, and concentration of nanoparticles depend on the concentration of reducing agent?

When nanoparticles are synthesized by chemical reduction, how does the size, shape, and concentration of the nanoparticles change with the change in concentration of reducing agent?

04 May 2014 7,432 8 View

Is there any definite rule to determine how polymer nanocomposite strength depends on the nanoparticles concentrations?

I want to know whether there is any relation between nanoparticle concentration and the strength of the polymer nanocomposite. I have used starch as polymer and ZnO nanoparticles. Does shape and...

04 May 2013 4,908 10 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Which cell line should we use to perform biological dosimetry experiments?

We are preparing some experiments based on irradiating cells under different conditions in order to evaluate the effects in terms of DNA damage, genetic expression, etc. As our project is...

01 March 2021 3,355 3 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 1 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

Necessary tube lenght to cool Natural gas in a dry-ice cooling bath?

I have a tank which contains natural gas at 250 Bar and 293 Kelvin. I want to cool the gas in a dry-ice cooling bath to about 195 Kelvin. The gas will flow in a copper-tube through the bath with a...

27 February 2021 8,128 1 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View