I want to use UV detector to determine trehalose, can anyone suggest a method for determination of Trehalose with UV?
Can everyone help me why in low doses of a drug grow impurity, but for the same drug in higher dose we have no impurity with over time?
18 January 2024 1,108 1 View
We have a problem with Diltiazem 60 tablets. We have the Dissolution profile of Diltiazem tablet cores according to the USP monograph (Diltiazem Hydrochloride Tablets). Tablet cores passed the...
01 September 2023 8,300 1 View
Dear friends, I am trying to measure anti-inflammatory of chamomile according modified Williams et al. method by BSA at 660 nm. The problem is that data is over even empty plate is approximately...
22 May 2023 6,747 0 View
we have a 20 microliter volume loop, but i want to use more volume loop because of more injection volume
31 January 2023 5,222 5 View
Can someone explain the following terms? ethanol (2X): what is alternative case it? PTFE membrane with a 0.45 micro meter pore size: what is alternative case it? polyester fiber (Carpenter Co.):...
24 December 2022 408 1 View
I need to perform DEM simulation for particle packing of CDW-based aggregates (geopolymer mortars), Can you folks recommend a free software, student version, trial version or code-based simulation...
23 November 2022 9,897 3 View
Hi I need a valid reference for the normal osmolality range of erythropoietin. Can you help me in this regard?
29 August 2022 6,381 0 View
Do you have a reliable protocol for viewing Total protein Spirulina on sds page gel?
26 May 2022 4,042 0 View
Hello everyone I inoculated C57BL/6 mice with TRAMPC2. I saw ulceration after 32 days of inoculation. anyone knows why it happens? except of injection manner, is there another factor to make this...
22 January 2022 2,596 3 View
How to increase the turbidity of DNA samples in the LAMP method? Especially at low DNA concentrations!
09 October 2021 3,764 0 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
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
A website software of Blackbody radiation law expert software can used through the following web site. http://39.105.188.151:3000/index
07 August 2024 1,706 0 View
I'm researching light sources and their UV emissions. I'm curious if a 50W, 7500K conventional LED lamp emits any UV light. I found that a 200W tungsten lamp can emit up to 1.5 mW/cm² at 350 nm....
31 July 2024 3,843 7 View
How can we calculate the percentage of configuration interaction (CI) in the UV output data of the Gaussian program? for example: Excited State 17: Singlet-A 5.1359 eV 241.41 nm...
28 July 2024 9,165 2 View
I was performing estimation of Total Soluble Sugar content in bacterial cultures by Anthrone method. Out of 9 samples, only one sample showed positive reading while others had a negative reading...
22 July 2024 9,576 4 View
i need to find ECC for 4-MIMO antenna using radiation pattern on CST
16 July 2024 7,291 1 View
Hi, I need to measure the real-time (or temporal intervals) thickness variation of a transparent material from dry to wet/humid conditions, however, I cannot use the following techniques: -...
08 July 2024 4,799 4 View
I'm attempting to simulate a crossed dipole antenna. For excitation, I've placed a lumped port along each dipole. However, the resulting radiation pattern is similar to that of a single dipole....
08 July 2024 1,876 3 View
In research papers on beam steering antennas, while the radiation pattern for the beam scanning plane (such as the horizontal or vertical plane) is typically presented, details regarding the...
03 July 2024 8,321 0 View