What is the best geophysical machine or device for detecting groundwater?

what is the best geophysical machine or device for detecting groundwater? Are there any machine that can detect the depth and the type of water? do I have to buy one machine or more than one to...

26 January 2021 6,149 15 View

Filtration of graphene oxide?

What is the filtration procedure/filter paper has been used to wash the particle from aqueous solution of hydrogen peroxide followed by HCl aqueous solution if improved hummers has been used ?

22 August 2020 3,054 2 View

Why Eviews dont allow me to run heteroskedasticity test ?

Dear all, Hello, I would like to ask a question about heteroskedasticity test using Eviews 11. Actually, after having the results of my estimations using fixed effect model for paned data (for 2...

09 May 2020 8,213 6 View

Can someone help with the selection of a Gravity flow gel-filtration column and media?

I am looking for solutions for purification of a PEG-DRUG conjugate. The conjugation is achieved with the help of DCC and NHS. The MW of PEG is 3.5 and 5 kDa and the MW of the drug is about 300...

02 October 2019 6,000 1 View

How to implement Machine learning algorithm in cloudsim ?

I want to use machine learning concepts in cloud computing. Can any one share learning resource links for implementing Machine Learning algorithms in Java ? I am not aware how to generate or...

09 May 2019 3,417 17 View

I want to ask about biodegradable material which decrease gelling temperature to 34 c ?

Hi i formulate polymeric nano crystal using F127 and F68 by different ratio . these form gel at 38 c i want to decrease gelling temperature to 34 c. i need to add material to decrease gelling...

19 July 2018 3,081 3 View

Xenograft tumor measurements when using matrigel?

27 October 2016 569 5 View

Power needed to fully charge a car battery?

22 October 2016 4,800 3 View

Anyone familiar with LDH assay and MTT assay?

Hello I run both cell viability using MTT and membrane integrity using LDH analysis, but I find the same compound shows higher levels of LDH release compared to the cell viability data. Can anyone...

15 February 2015 1,206 19 View

Can someone suggest a protocol for preparing cell samples for flow cytometry analysis?

I am trying to find the ROS production in adherent cells after exposing them to stress causing agents, using flow cytometry. I am no sure how should I go about the sample preparation. Please help

14 November 2014 8,200 12 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

Should we change media after1st 6hrs after plating HUVEC bought from INVITROGEN?it's not recomended by invitrogen.Will DMSO present in stock matter?

We have HUVEC bought from Invitrogen. Cat no -C-003-5c. while first plating the cells we have bought the protocol suggests not to centrifuge the cell with media to remove the DMSO. Should we...

02 March 2021 3,713 2 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View

Bought HUVEC from Invitrgen.need to revive it.expected it is cryofreezed in DMSO.Do I need to remove the DMSO for plating the cell for the 1st time?

After I cryofreeze the cell do I need to remove the DMSO for culturing the cell for next passages .

28 February 2021 7,738 3 View

POlymer+DMSO solution and moisture??

What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?

28 February 2021 6,516 5 View

Why am i not getting solid after reacting APTES with salicylaldehyde?

The reaction of APTES with salicylaldehyde in ethanol leads to the formation of imine compound yellow solid which is mention in literature, but I am not getting yellow solid I don't know why? when...

28 February 2021 2,955 2 View