MALDI-TOF/TOF-MS: t2d converter

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Energy consumption control with an approach of Iranian architecture?

I am looking for a partner who can help in reducing energy consumption in the field of Iranian architecture.

04 January 2024 2,195 3 View

Does aggregation induced quenching (AIQ) impact on absorption of CQDs?

Hi Usually, AIQ has an effect on the emission spectrum. What about absorption? Does aggregation-induced quenching (AIQ) impact on the absorption of CQDs?

19 August 2023 3,481 1 View

Have anybody a list of secondary amino acids in order to see antioxidant capacity?

Hey everybody. I have done amino acids analysis by LCMSMS. I am looking for a list of secondary amino acids in order to see antioxidant capacity in these molecules. anyone have a such list???? TNX

12 June 2023 5,845 3 View

Can Raman spectra nbe used as quantification in metabolic fingerprinting?

Dear all, I am using metabolic fingerprinting for my clinical studies. I am in doubt that I can use the Raman spectra for quantification? Can I use it semi-quantify? Can you provide me with...

11 April 2022 7,753 2 View

How to calculate amino acids concentrations when I am using isotope labeled compounds as internal standards in LCMSMS?

Dear All. I have separated 38 amino acids on HILIC column couple to QQQ followed by using 10 isotope-labeled amino acids as internal standard. However, I am not sure which formula to use to...

28 December 2021 2,543 4 View

Aggregation-induced quenching (AIQ)?

Hi I want to do Research about Carbon QDs. papers have talked about aggregation-induced quenching (AIQ) and I can not get detailed information about AIQ from the papers. could you please give...

28 December 2020 4,663 0 View

Call for reviewers & manuscripts?

Dear Professors and Researchers Peace be upon all of you. It is a great pleasure to announce that The Egyptian Journal of Community Medicine is no available at this link. All publications are...

29 December 2019 6,052 1 View

How to determine the sub x in a structure such as CuInSexS2−x QDs?

hello every one I want to synthesis the CuInSexS2-x QDs and as I am elementary in chemistry, I want to know that how to determine the sub x in such structure in practice (mean in the synthesis of...

24 November 2019 2,271 1 View

Does glycidol react with OH or carboxylic group in citric acid? which one has higher tendency to react with epoxide ring?

As you know, citric acid has three carboxylic acids with pka: 3.13, 4.76, and 6.4 as well as a hydroxyl group with pka 11.6 to 14.5 (depending on the reference). On the other hand, OH has a potent...

10 November 2019 10,096 2 View

How to chose semiconductor material for synthesis of colloidal QD?

Hello I want to know, how to chose appropriate semiconductor material for QD synthesis? it is base on bandgap? or something else? how scientists know that the I-III-VI elements (for example) are...

07 November 2019 828 2 View

Can you connect an HPLC to a Mass Spec only at a certain time point?

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

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 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

Where to find a gene list for CRISPRa/i library screening of regulatory factors that affect pathogenic Th17 differentiation in PBMC?

I want to perform a CRISPRa/i library screening for candidate regulatory factors that affect pathogenic Th17 differentiation in PBMC. But I am wondering how to define the size of gene library, so...

31 July 2024 2,150 0 View

Hello dear researchers. I would like to know what is a normalized mass in an EDX analysis?

EDX analisys

31 July 2024 5,947 2 View

Gas chromatography RT detection?

I am working on algal extract to which gas chromatography (Not GC-MS) spectrum I want to discover. My question is can we identify specific compounds using retention time if I compared the RT with...

29 July 2024 8,034 4 View

MAGeCK Plotting Error: Logarithmic Axis Must Have Positive Limits?

I have been running a MAGeCK test command on the terminal for a CRISPR screen to rank sgRNAs and genes based on the read count tables. However, I get only the plot of the top-ranked genes...

28 July 2024 9,811 1 View

Screening of EPS producer LAB?

if you have MRS broth already prepared, what is the manner you will follow for preparing hyper-sweet medium for screening of EPS producer LAB? what the concentration of saccharose or glucose you...

26 July 2024 6,606 0 View

Could international experts in media and journalism, AI, communications and international communication share this conference link?

"Integration of Mass Media and Communication into the System of International Relations: Place, Role, Actuality and Prospects: Modern Media Issues 2024" Website: https://immcir.alnoor.edu.iq/

23 July 2024 3,139 6 View

Why methanol and sulphuric acid used in the analysis of polyhydroxyalkanoates (PHA) by GC-MS?

Why methanol and sulphuric acid, used in the analysis of polyhydroxyalkanoates (PHA) methyl esters by GC-MS? Additionally, why do we typically use non-polar solvents in GC-MS?

22 July 2024 1,210 2 View