How can I measure the pka value of my drug (API) by using UV spectrophotometer?

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Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How are Large Models Exploring and Outputting Knowledge Understanding in Specific Content Areas, and What Does Academic Research Say About It?

Hello everyone！ I am currently exploring the performance of large models in understanding knowledge in specific domains, and attempting to construct a knowledge framework similar to what...

05 August 2024 5,729 2 View

Regarding a model for simulating battery charge and discharge, what do you consider to be high fidelity?

Regarding a model for simulating battery charge and discharge, what do you consider to be high fidelity? What is the acceptable percentage of error (regardless of the metric)? Could you suggest...

03 August 2024 5,358 0 View

How do i get an account to upload my published papers?

need to open an account to upload my published papers

01 August 2024 9,255 1 View

What is the problem with these tissue culture plants?

All plants are green but some of these plants becomes yellow. I did not found any reason. Please help me to find out the real problem.

01 August 2024 589 4 View

How to correctly use the UTE and ZTE pulse sequences in Bruker's ParaVision software?

I am using a Bruker 600M solid-state NMR spectrometer with a Micro 2.5 microimaging system. The test sample is a tube of 1M LiCl aqueous solution, and the nucleus detected is 1H. I am trying to...

01 August 2024 9,227 1 View

Is artifacts in XPS possible to build high deviation in binding energy larger than 5 eV??

Hello. Thanks for your consideration to see my question. Recently, I conducted XPS anaylsis of g-CN that is prepared from thermal polycondensation of DCDA, so-called conventional bulk-g-CN,...

30 July 2024 9,824 2 View

Which statistical test should we use?

N=6 Comparing pre and post test likert scale responses. Participants are mix of practicing & preservice teachers.

30 July 2024 7,233 4 View

How to build my own lab made four point probe set up?

Hello, I'm trying to measure the conductivity of semiconductor films but since I don't have a commercial four point probe set up I would like to build one on my own in my lab. I have generators,...

30 July 2024 906 2 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

Why 3 replicates for most biological assays? Is it enough to examine the data fits normal distribution?

Just bounced on me. Before statistically analysing significant difference, shouldn't we see if data fits normal distribution first? Is 3 replicates enough to testify the hypothesis of normal...

31 July 2024 8,141 13 View

Can any one let me know the PDE value for Tert-Butylamine in order to control in the API?

PDE value for Tert-Butylamine

24 July 2024 1,166 0 View

Biomerieux API Campy performance?

Hello, I have a somewhat weird question: has anyone had problems with campylobacter growing in the second half of the strip GLU through ERO? Have you managed to correct it? There is some...

19 July 2024 3,094 2 View

How to dilute essential oil from plants to assess the biological activity?

I have extracted essential oil from a medicinal plant and want to make several concentrations for some biological activities (Antidiabetic assay). How can i prepare the several concentrations to...

04 July 2024 8,100 4 View

What is the effect of redshift on the evolution of an AGN?

AGN (Active Galactic Nuclei) are high energy galaxies powered by supermassive blackholes. The evolution of a galaxy is characterized by parameters such as luminosity and redshift. The redshift is...

25 June 2024 3,782 2 View

Is a PhD mandatory to become an assistant professor in India?

I would like to know whether a PhD degree is mandatory or not to become an assistant professor in India. Will it be an added advantage to improve the overall academic performance indicator (API)...

19 June 2024 9,332 1 View

How to define non-linear parameters for time history direct integration case in SAP2000 using MATLAB API functions?

I use MATLAB to define SAP Model using API function but when trying to define time history direct integration case, the non-linear parameters change from the default which affect the results and...

04 June 2024 2,369 1 View

How to communicate with BlueFors temperature controller using LabView?

New temperature controller from BlueFors uses API commands. To communicate with it, I am trying to use LabView, but I don’t have experience with HTTP. I have succeeded to get data using “get”...

01 June 2024 9,719 4 View

Are You Interested in Collaborating on Chemistry Research?

Hello ResearchGate Community, I am an MS Chemistry student with a keen interest in advancing my research skills and contributing to impactful projects. As I embark on my journey in the world of...

17 May 2024 3,213 4 View

How develop anhydrous crystalline polymorph of Pregabalin API?

I am working on Project To develop anhydrous crystalline polymorph of Pregabalin API. Standard theta value : Two –theta values are 9.55 ± 0.2 and 19.13 ± 0.2 need to be match and Melting Point...

03 May 2024 6,898 0 View