Does mineral and organic nitrogen fertilization modify essential oil content and chemical composition in Aromatic plants?
I am planning to isolate cells from frozen xenograft tissues (stored in liquid nitrogen). The tissues are stored in 10% DMSO, 30%FBS and 60% RPMI with Penn/Strep. These tissues were frozen with a...
14 December 2020 3,910 1 View
Hello everyone, I am doing an experiment in which, the plan of work is to electroporate a clone (plasmid form) into chicken spermatozoa, which will be used further for artificial insemination....
07 September 2020 7,855 2 View
I am trying to CG relax a amorphous GeSe system with B3LYP and single K-point (gamma). Even though I have a 250 atom model, the calculations seem to be extremely slow. Is there a way to speed up...
23 August 2020 8,848 4 View
I have a UPLC system and XBridge C18 ( 3x150mm, 3.5 um). I am running short of time and cant procure a UPLC compatible column for the time being.
15 December 2019 8,433 12 View
I need a data set of dorsal hand vein images for experimental purpose.
07 October 2019 1,438 1 View
HI, I am finding difficulty with the solubility of Platinum (II) chloride. I wanted to prepare PtCl2 in water for electrochemical application.
21 August 2019 5,444 3 View
We have derived from certain astrometric and cosmological observations how physical constants evolve in time (https://doi.org/10.3390/galaxies7020055). The theoretical basis used is rather...
25 May 2019 8,899 3 View
Hi everyone, I am looking forward for a solution to my problem. I want to attach an enzyme covalently on gold nanoparticle surface. If i follow EDC-NHS chemistry, the enzyme-nanoparticle complex...
14 April 2019 7,238 2 View
Tartaric acid content by HPLC
09 April 2019 3,675 10 View
washed the column in the reverse direction also but the same problem persists. when flow rate is reduced to 0.8mL/min from 1 ml/min...the pressure reduced to 2800 psi apprx. what more can be done...
04 January 2019 7,935 13 View
What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help
08 May 2021 0 0 View
Anyone can recommend any books on such topics? Thanks in advance.
02 March 2021 8,457 2 View
(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...
02 March 2021 3,309 2 View
The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...
01 March 2021 2,272 4 View
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
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
Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...
26 February 2021 1,100 5 View
Please help me to identify this fern species. Thank you in advance.
24 February 2021 2,435 5 View
I'm a chemistry student and I'm researching the kinetic degradation of mixed plastic waste. I'm having trouble calculating the activation energy by the coats & Redfern method. The data that...
24 February 2021 974 1 View