Correlation between molecular structure and column selection?

With regard, Please suggest that have you experiences straight HPLC column selection by knowing molecular structure. or what are the concept you follows for selection of HPLC column. (i.e....

08 September 2019 846 4 View

Correlation coefficient limit in HPLC method validation

05 June 2016 4,040 1 View

How can you know that a sample is uv active?

Please update me- is there any specification on structure basis, that a compound is UV active? As a large molecule, can we make a decision to look into whether the structure of that molecule is UV...

10 November 2014 2,276 7 View

What is the entropy of a dead man?

i had the query to understanding about thermodynamics law. recently i found that thermodynamics is unable to provide a reason behind the entropy of living organism. so how can we know that what is...

10 November 2014 1,835 1 View

Can anyone explain the different principles of HPLC?

Is there any difference in principle of reverse phase chromatography and Normal Phase Chromatography? Please share any link where i can update myself in detail. Thanks and Regard

08 September 2014 5,360 21 View

Column Flow Pattern

Please help me to understand the flow pattern of mobile phase inside the column. please share any link where i can update myself. Thank & Regard

08 September 2014 1,844 0 View

How can I improve my chiral column resolution?

I'm using Chiralpak IA column for my analysis. initially there was good resolution in my analysis, but followed by time the both peak in racemic merged. My mobile phase is only n-Hexane:IPA...

08 September 2014 4,681 9 View

Problem With CHIRAL PAK AD-H Column - Can anyone help?

I used Chiralpak AD-H column, and my molecule having THF, MDC in traces. So within 1 month the column gives a poor peak and also tailing with peak broadening. I tried ethanol, IPA for washing as...

08 September 2014 7,455 13 View

Which is the most convenient manufacturing software for Additive Manufacturing?

Which tools can be used to generate machine codes for additive manufacturing?

02 March 2021 7,220 2 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

How could I process data in RCT to include it in meta-analysis?

I'm in the process of doing a meta-analysis and have encountered some problems with the RCT data. One of my outcom is muscle strength. In one study, I have three different measurements of muscle...

25 February 2021 7,603 3 View

Is there any teachers based in UK who would like to take part in my study?

24 February 2021 4,833 3 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

How to formulate Energy minimization in Molecular dynamics simulation for alloys using meam potential?

during MD simulation, the atoms are not moving as per required. The problem (as per my observation) lies in energy minimization technique. upon application of tensile strain in x or y direction,...

22 February 2021 380 5 View

The most suitable method to calculate the stress intensity factor in the presence of contact between the crack lips?

I'm trying to study cracked structures under a compressive load taking into account contact between the crack lips. I would like to know if the method of extrapolation by displacement remains...

21 February 2021 8,694 4 View

ANCOVA controlling baseline in RCT - how to perform power analysis and sample size estimation?

Hi, I have a simple question. I am hoping to perform a power analysis/sample size estimation for an RCT. We will be controlling for baseline symptoms, and using post-treatment or change scores as...

19 February 2021 2,648 23 View

How to differentiate the economic productivity in agriculture and in manufacturing sector?

Most of the references I found were on the economic productivity in agriculture but very limited application in manufacturing sector. I would appreciate if anyone could share the references on...

15 February 2021 8,342 7 View