I want to use this buffer in urine for NMR analysis
There ae online calculators (eg. https://www.egr.msu.edu/~scb-group-web/buffers/buffers.html).
Hi all, I made synthetic wastewater samples and I was wondering if the integrity of the ions might change if stored for long time outside the fridge before analysis. Say foe example, I prepare...
09 June 2024 2,706 0 View
Which anions from multi-elemental standard solution will elutes first in anion exchange chromatography?
12 September 2023 1,398 1 View
Which anions elutes first in anion exchange chromatography?
10 September 2023 9,510 1 View
which concentration between 2% and 5% nutric acid is better to use to prepare for ICP-OES standard solutions ? I have multi-elemental solution, I want to make a standard solution for calibration...
24 August 2023 1,576 0 View
Can I determine the cross-flow velocity in FO with pure water as a draw and feed solution? This is my first time working with a Forward Osmosis membrane, we dont have flow meter attached in the...
28 May 2023 6,325 0 View
What is the procedure for determining the CFV in a bench-scale Forward Osmosis setup? This is my first time using the equipment. Should I initially calculate the mass change between the DS and FS...
23 May 2023 6,988 0 View
Considering the density, how do I prepare a 1% nitric acid solution from 70% nitric acid to dilute my unknown concentrated sample (1ml) for ICP-OES. How much volume is required from 1% to dilute...
17 May 2023 585 0 View
how many times do I dilute my concentrated samples before ICP-OES analysis? For example, do I use 2% nitric acid for the dilution of my wastewater samples? and how many times?
03 May 2023 7,657 0 View
Do I have to dilute my urine samples with nitric acid before I analyse them in ICP-OES?
03 May 2023 5,901 0 View
What exactly is the 'initial water flux' in membrane systems and how do adjust it if for e.g I want the initial water flux of FO and RO to be the same
01 May 2023 793 2 View
I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.
11 August 2024 9,101 4 View
I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?
11 August 2024 5,138 1 View
Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!
11 August 2024 3,770 4 View
Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...
10 August 2024 7,180 0 View
I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...
10 August 2024 7,429 2 View
How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?
09 August 2024 7,718 0 View
Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...
07 August 2024 1,937 1 View
A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.
07 August 2024 5,307 1 View
Does anyone tried to do nucleofection with AMAXA by Lonza with lower than recommended amount of buffer in the cuvettes (100 ul)?
07 August 2024 4,616 0 View
Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...
07 August 2024 8,106 4 View