Can I used the chiral selector in the mobile phase with CSPs in chiral separation?

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Question: Is there a requirement for the number of researchers (three or less) in any scientific research in a scientific journal for scientific ?

سلام عليكم سؤال هل يشترط عدد الباحثين( ثلاث او اقل ) في اي بحث علمي في مجلة علمية للترقية العلمية اذا كنت الباحث الرابع في البحث العلمي كم نقطة احصل...

31 May 2024 6,120 3 View

Hello Can any one identification this insect best wishes ?

hello Can any one identification this insect best wishes

21 May 2024 837 8 View

I want to know the most marine gram negative bacteria in Mediterranean sea produce bioactive compound ?

I have 2 strain marine gram negative bacteria have antimicrobial activity i want to know the expectations

12 May 2024 2,312 0 View

Beetle insect may be carpophilus hemipterus ?

hi please any one id this beetle best wishes.

18 April 2024 7,246 5 View

May fly identification ?

hi The problem did not appear in the fifth month, but rather appeared in the third and fourth months, and the adult females remained alive for more than five days, contrary to what they say, that...

11 April 2024 2,853 0 View

Is this plant bug (Liorhysus hyalinus) a predator, a parasite, or is it of no significant economic importance?

29 March 2024 4,326 0 View

Identification of this infection ?

26 February 2024 8,700 0 View

Identification of this infection ?

hi please help me in id this infection.... best wishes

26 February 2024 8,479 0 View

Energy absorbed from geothermal well?

In the Organic Rankine Cycle, if the total solar energy absorbed per day is calculated as the Solar Direct Normal Irradiance (DNI) multiplied by the Collector Area of CSP and the Operating Hours,...

22 February 2024 8,767 4 View

Is the silkworm considered a worm?

Hi Is the silkworm considered a worm? In the event that it is transported from the country of origin to another country due to the absence of biological enemies, for example? In the event of the...

07 February 2024 6,624 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

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

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

Can the limit of quantification (LOQ) of an analytical method fall outside its linear dynamic range, or must it always be within it?

Can an analytical method's limit of quantification (LOQ) be outside its linear dynamic range, or is it always required to be within it? Please provide a thorough explanation supported by verified...

29 July 2024 7,198 9 View

Where to start the Analytical model for Dry sliding wear of metal surface ?

I am doing research on wear mechanism of the additive manufactured metal parts under dry condition. Please share the reference to start the analytical modelling of the wear prediction.

29 July 2024 6,115 0 View

How can I use DFT-D3 correction ( Siesta version 5.0.1)?

Dear Siesta Users, I installed Siesta 5.0.1 and I want to use Grimme's D3 correction. According to the 5.0.1 manual, I could use a few parameters to include the D3 correction in the...

27 July 2024 5,748 0 View

EDC carbodiimide and NHS easter 's half life among different pH?

It has been long known that EDC carbodiimide and NHS easter's half life agains hydrolysis are highly related to pH. However, very surprisingly, not yet found a paper giving a table/chart of their...

25 July 2024 8,738 0 View

How to determine method detection limit in an analytical method?

I know the difference between instrumental LOD and method LOD but my query is - in case of any sample whose concentration is zero or not detected by the instrumental LOD, is it possible to get...

24 July 2024 6,592 5 View

Mechanochemistry: ball to powder mass or ball to powder volume?

I run mechanochemical reactions that involves the use of a large amount of catalyst (1:1 molar ratio to the reactant). When I try to understand the effect of amount of catalyst on the reaction, I...

23 July 2024 9,938 1 View

How to eliminate the carry-over effect in GC-MS/MS system?

Hi, I am a PhD student working at Jagiellonian University, Faculty of Chemistry. My work is related to the development of new analytical methods for the quantification of short-chain fatty acids...

22 July 2024 5,492 6 View