Can I use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography?

Hi! I would want to know if I can use acetic acid with an ELITE WAX Perkin Elmer column for Gas Chromatography. This column has a polyethylene glycol phase, but I can't find the manual to check...

22 February 2021 730 2 View

In order to simulate a DWC in steady state, how to put the unit operations in the flowsheet of any process simulator?

14 January 2021 3,938 6 View

Which is the best bibliography to search for experimental data of process engineering?

16 December 2020 7,894 2 View

How to set Decouplers in control systems?

09 December 2020 1,409 5 View

Is there a MRI/DTI public database from epileptic patients?

I am looking for DTI/MRI data from epileptic patients for a MSc thesis. Regards

19 November 2020 5,435 3 View

How to built a simulation of a chemical process?

12 September 2020 7,685 10 View

How to recode a short essay style question so that I can use it in SPSS?

Hi everyone, I am conducting an experiment for my dissertation. The manipulation I used consisted in asking people to recall and write down a particular episode in which they felt they had or had...

26 July 2020 6,540 1 View

Is it wrong to measure the mediating variable after the independent variable?

I am conducting an experiment for my dissertation. I want to put the mediator after the independent variable, in the survey flow. However, my supervisor told me that it is wrong to do so. The...

19 July 2020 5,883 5 View

Can the temperature/oxidation state alter the lifetime of an electronic transition?

Good Morning. Iv'e made Fe K-edge XAS measurements on a mineral with Fe3+ and Fe2+ atoms, looking for the pre-edge feature and using gaussian curves to fit the pre-edge assuming 4 quadrupole...

14 July 2020 8,092 4 View

Does Autodock Crankpep's parameter file contain data for Zn?

I'm trying to dock a zinc complex, but when I tried to prepare the ligand, I get an error saying that there are no Gasteiger parameters available for it. I know you can add atom types in Autodock...

29 June 2020 2,031 2 View

Ideas for Phd's Thesis on pricing (Marketing)?

Hi everyone, I'm studying Marketing and I would like to write my PhD thesis on the topic of pricing. Any specific ideas?

02 March 2021 9,706 5 View

How to simultaneously perform multiple biochemical assays?

I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...

01 March 2021 6,999 3 View

Benefits of the 24 welled plate?

We have always used the 96 welled plate, the 48 welled plate but apparently there is much evidence on the 24 welled plate and above all its benefits.It states it is the same you would use on ELISA...

28 February 2021 1,149 1 View

Is there any one who can provide a donation of HPV detection and genotyping kits in exchange collaboration forms?

Warm greetings! My name is Ayichew S. and I am doing my Ph.D. in Medical Microbiology focusing on Human papillomavirus). At this stage, I have almost completed a clinical sample (Cervical swabs)...

25 February 2021 3,612 3 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

What does it require to be ready for e-Commerce in developing countries?

Most developing countries are not ready for e-Commerce? What dimensions and indicators are there to measure e-commerce readiness of a nation? Please share framework or model and evaluation...

22 February 2021 8,132 6 View

I want to simulate a system containing protein and heavy metals; which force field is most reliable for this purpose?

The protein I want to simulate has multiple heavy metals. I wanted to know which force-field I should use with GROMACS to achieve this. Most importantly, do the latest updates in the force-field...

16 February 2021 2,420 1 View

Reliable and Valid Instrument for Causes of Medical Errors?

Is there any questionnaire/survey that measures the causes of medical errors? Example: physician negligence vs. systemic issues. Looking for a reliable and validated instrument. Thank you!

15 February 2021 2,874 4 View