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Questions related to pH
Hello, I would like to perform zeta potential measurments for amine-modified latex beads L2778-1ML with a buffer whichs allows positive zeta potential values. Indeed, I already performed...
15 December 2021 2,243 3 View
To anyone with more experience in the area of CMC determination, I am working with a small molecule that can exist in 2 states which can both self-assemble, and my goal is to show a difference in...
15 December 2021 4,258 3 View
10x RBC Lysis Buffer 89.9 g NH4Cl 10.0 g KHCO3 (out-of-stock) 2.0 ml 0.5 M EDTA Dissolve the above in approximately 800 ml ddH2O and adjust pH to 7.3. QS to 1 liter and mix thoroughly. This...
14 December 2021 8,146 1 View
I needed to check pH during a lengthy titration, so I kept the pH probe dipped in the solution for several hours. Several colleagues have commented that it will damage the pH probe. But all I...
13 December 2021 5,350 3 View
Dear colleague, I am testing on formulation of cationic lipid nanoparticles. The lipid compostiin is DOTAP: DSPC: Cholesterol: PEG2000 DSPE=50: 10: 39: 1. The buffers of 50 mM sodium acetate at...
12 December 2021 2,767 1 View
Hi, I would like to ask where I can get a dataset for an Artificial Neural Network I would like to build for the prediction of biogas yield and methane content. Ideally, I will require at least...
12 December 2021 6,181 5 View
I want to formulate l-carnitine tartrate (as 500 mg l-carnitine) as chewable tablets. Does anyone have experience in this field?
11 December 2021 5,191 5 View
Pleae if possible specify the the qpproximatse losses caused according to the media used.
07 December 2021 7,491 2 View
looking for a chemical paint used for wood and has anti-fire properties
05 December 2021 1,140 8 View
Hi, I'm making up a few different types of nitrogen-free media, including nitrogen-free malate with bromothymol blue (NFb) and nitrogen-free combined carbon (NFCC) media. NFb medium composition...
03 December 2021 5,741 3 View
We are currently attempting to optimize a flowthrough-based toxicity assay into a semi-static renewal method. For this experiment, we will need to replace the water in approximately 20-25 tanks...
01 December 2021 179 1 View
Protocol on soluble carrier material selection for coating bacteria in order to rapidly reach bottom of ETP for wastewater treatment.
30 November 2021 9,353 8 View
In most of the literatures Gas Chromatography has been used to calculate the yield % of aldehydes, is there any other ways?
28 November 2021 4,454 7 View
I am working on in vitro digestion, and need to determine the activity of trypsin in pancreatin. The protocol instructed to dissolve pancreatin in 1mM HCl. However, pancreatin does not dissolve....
25 November 2021 7,676 4 View
hello dear scientists, I am facing problems to separating my nanoparticles from lignocellulosic biomass after hydrolysis. What happens is that: I apply nanocatalysts to perform the hydrolysis of...
23 November 2021 1,515 4 View
I studied the dispersion of nanoparticles in surfactant. Nanoparticles that I studied are Multi-Walled Carbon Nanotubes (MWCNTs), Graphene Oxide (GO), Iron Oxide (Fe3O4) and Silica Dioxide (SiO2)...
21 November 2021 5,006 10 View
I am looking for an equilibrated CHCl3 box for CHARMM FF. Thanks for a link or sharing
17 November 2021 7,787 1 View
Our lab synthesizes MnO and Fe3O4 nanoparticles and encapsulates them with PLGA and PLGA-PEG-ALK polymers by single emulsion. The encapsulation of MnO is carried out using a magnetic stirrer and...
17 November 2021 7,867 1 View
I have been working on heavy metal sequestration via adsorption mechanism. In order to calculate further statistical values, Ci (initial concentration) value is required. I use AAS to detect the...
16 November 2021 3,534 3 View
B'cos column chromatography is cost,time expensive suggest simple techniques
10 November 2021 4,779 4 View
Techniques like atomic absorption and plasma emission spectroscopy are expensive and need higher expertise to carry out for routine work. I am looking for some simple but sensitive method. Hoping...
09 November 2021 1,201 6 View
We are spraying PCL using chloroform, and then dry in various conditions (vacuum or N2, 30°C to 50°C). At different time points, we measure the residual chloroform via headspace GC (150°C). When...
09 November 2021 5,822 1 View
Hello. I have water and sediment samples collected in freshwater, brackish water and marine water environments. I want to keep these samples for a long time and use them in the future for...
07 November 2021 4,257 11 View
I recently have some problems for my protein transfer as seen in the attached photo. It doesnt look like air bubble trapped but instead seems the membrane or gel was damaged. Can anyone please...
07 November 2021 1,970 1 View