A molecular weight of a polyunsaturated fatty acid (C16H24O2) is 248.1763. However, the m/z given was 293.178. How to get the m/z?

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Can other standards be used to generate IRF file instead of LaB6,Si etc.,,, for Rietveld Refinement?

Hi, my research involves in ZnO synthesis. I have performed rietveld refinement of my samples and obtain a good fit using Fullprof suite software. However to obtain the crystallite size, the IRF...

07 July 2024 3,526 3 View

Can i deduce the presence of surface states based on my XPS data?

In my XPS spectral, i detected oxygen group bonded to carbon and in my zinc spectral (note : my sample is ZnO) ...there are two valent zinc species available, (which is unsual as my previous...

17 June 2024 3,888 2 View

Do your country have Psychology Acts?

Hi/Salam; Did your country establish "Psychology Acts" for psychologists to practice? I just discovered that Malaysia still does not have the Psychology Acts for psychologists to practice, where...

13 May 2024 6,921 6 View

QPCR probe optimization troubleshoot - big CT value, and no ct value in the qpcr result with WT and homozygous confirmed sample. Valid or error?

Im doing a qpcr for genotyping ERCC1 rs11615, now Im in a middle of optimization of Probe ERCC1 wild type, with 2 confirmed sample (WT and heterozygous sample). and the result, Ive got a big CT...

22 November 2023 9,976 4 View

Is it considered bioethics?

If I am working on dealing with sadness as being stigmatized as "sinful/immoral" culturally in Muslim societies that made a roadblock to the process of sad emotion regulation psychologically,...

27 July 2023 9,773 6 View

Are you among all who ‘have a passion for the brain’ as curious humans? Why brain is important to you, your religion, country and your planet Earth?

Join, and show advocacy to the European Brain Council (EBC) which comprises nine member organizations, which are two of them are patient groups, and the other seven groups represent the research...

04 July 2023 8,627 31 View

Why aluminium in aluminium-ion batteries as an anode?

In recent days, batteries have a lot of attention, especially for Electric vehicles. Besides Li-ion Battery, I've read about aluminium ion batteries, but I can't understand, Why aluminium act as...

16 February 2023 6,493 3 View

If I have a sample (corned beef) of 10 g and the maximum nitrite it contains is 30 mg/kg, what is the maximum nitrite in µM? And how to convert it?

Hello, I wanna ask, If I have a sample (corned beef) of 10 g and the maximum nitrite (NO2-) it contains is 30 mg/kg, what is the maximum nitrite in µM? And how to convert it? The research I am...

21 March 2022 6,510 6 View

Is there any hybridized method between the Qur'anic Thematic Analysis and Psychology Thematic Analysis Methods?

Is there any hybridized method between the Qur'anic Thematic Analysis and Psychology Thematic Analysis already developed to refer to in order to complement each others' absent aspect in Islamic...

07 August 2021 9,149 0 View

How does the bioautography assay of carotenoid (and its constituents) can be carried out to determine the bioactive compound/ spots?

Carotenoid is light sensitive and is easily disappear from TLC due to exposure to light and air.

29 August 2018 5,034 3 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Baseline drift in HPLC? What causes this?

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

Basis set and input instruction to calculate HOMO and LUMO using Orca for Imidazolium based organic salts?

Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...

09 August 2024 5,444 7 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

Weak DAPI staining after immunohistochemistry - how to improve?

After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...

05 August 2024 9,637 2 View

The Curse of Evolution and Complexity?

Brain and body mass together are positively correlated with lifespan (Hofman 1993). The duration of neural development is one of the best predictors of brain size, and conception is the best...

05 August 2024 6,247 3 View

How to convert g/kg Humic acid dose to kg/ha?

I used humic acid at 0.044 g/kg soil in my pot experiment. But finally, I have to recommend kg/ha. Each pot's soil weight was 11 kg. What is the solution?

02 August 2024 7,186 6 View

How to improve peaks separation in HPLC?

Hi everyone, I'd like to better separate two close peaks coming from a bioconversion sample, I'm currently using a C18 KromaPhase 4,6mm Ø.I. SCHARLAU, particle size (µm): 10, pore size (Å): 100,...

30 July 2024 435 3 View

Inquiry on Maximum Nucleic Acid Volume for 2.5 mL Liposome Solution?

I am currently working on a project involving liposomes and need to determine the maximum volume of siRNA that can be added to a 2.5 mL liposome solution with a total lipid concentration of 10...

30 July 2024 6,420 1 View