I have an ethylene gas (1%) cylinder balanced with Nitrogen. Cylinder volume is 1.55 L. I want to make a standard curve with very low concentration of ethylene, in nano litres. How do I dilute the gas to reach this concentration?
Help me to draw graph of Bioconcentration
10 June 2024 4,941 2 View
I want to estimate total sugars in carrot and products developed from it. I have been using lane and eynon method. I could get the values for reducing sugars but not for total sugars. What is the...
28 May 2024 9,382 4 View
My name is kiranbir kaur and m student of MSC Computer Engineering in Solent University Southhampton (United Kingdom).Please suggest me the topic for dissertation.Include the Problem and Solution.
24 May 2024 4,355 2 View
Hi, My name is kiranbir kaur and m student of MSC Computer Engineering in Solent University Southhampton (United Kingdom).Please suggest me the topic for dissertation.Include the Problem and Solution.
24 May 2024 1,180 3 View
Dear researchers, I am treating the waste water by vermifiltration process using different filter bed media. After the treatment, BOD, COD, TSS were found to be reduced but reduction in total...
18 May 2024 1,897 3 View
Using 10 ml of 1% methanolic hcl, 1 g fresh sample and OD at 530 and 657nm
07 May 2024 4,440 1 View
For synthesis of Ni MOF by Ultrasonication method where some article mentioned room temperature about 4 hour. But the problem is during sonication for such long time the temperature of water in...
01 May 2024 7,285 1 View
when i am installing cooja 3.0 in ubuntu 18.04 i am facing some problem give me some solution
01 April 2024 4,305 0 View
While synthesising nanocomposite material by blending one component over another, it was observed that if amount of components is doubled/increased without increasing blending time (i.e., kept...
19 March 2024 2,781 2 View
I have knocked down my gene of interest by lentiviral transduction. I revived the vials and continue growing cells for 72 h without any selection. After confluency, I passaged the cells later 24...
28 February 2024 4,032 1 View
A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...
11 August 2024 9,801 2 View
Can anyone explain this method? Especially the last statement where it says only at 1.5 to 2.5mins was the MS/MS connected to the UPLC. How is that possible, is it a feature in this specific...
11 August 2024 8,141 3 View
Some sources say it is treated as Newtonian as ethylene glycol has a higher viscosity than water, which affects the flow characteristics in simulations. But some also say it is non-Newtonian.
09 August 2024 2,111 2 View
Hello experts, Does anyone know any free software about retention index prediction ?
08 August 2024 7,403 2 View
I'm working on selecting antibodies against a recombinant protein that has a His-tag. My idea is to first bind the recombinant protein to a HisTRAP column and then use this column for an affinity...
07 August 2024 505 3 View
Dear QE-users, In the method where full MS positive mode and PRM mode are used, we always get an incorrect auxiliary gas reading (41 instead of 25). This only happens in this method; other...
06 August 2024 4,953 0 View
Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?
06 August 2024 980 5 View
There are anaerobic gas pak jars and environment providers in the laboratory that provide anaerobic environmental conditions for the growth of anaerobic bacteria. However, there is no anaerobic...
05 August 2024 4,945 3 View
Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?
03 August 2024 7,035 3 View
or we can collaborate
01 August 2024 6,705 2 View