How to apply photocatalyst on colourless pollutant and drugs using photocatalysis using spectrophotometer measurement ?

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My pollutant include dyes. GCMS sample should be devoid of water, i am not getting how to take it in methanol solvent after degradation?

My pollutant include dyes and drugs. GCMS sample should be devoid of water, i am not getting how to take it in methanol solvent after degradation product complete. I have taken the sample and...

01 November 2020 5,840 3 View

Is Hemispheric Brain Dominance a current research topic in neuroscience/psychology ?

I want to start research regarding Brain dominance and some concepts of positive psychology. That is why I ask whether or not it is a research area that is relevant now. If not could you please...

09 March 2020 6,857 5 View

Storing tissue in Agarose for 24 hrs ?

Dear All, I want to perform tissue section on different kinds of tissues like brain, muscle tissue,etc. I would like to store my fresh tissue in agarose for 24 hrs/over night before sectioning...

16 February 2020 878 2 View

How to generate PSF and perform Deconvolution?

I have recently started learning about deblurring images using deconvolution. I have a stack of images (in .tif format) of size 873 MB (1392 x 1040) and a total of 301 images in a single .tif...

04 February 2020 5,866 1 View

What is the Difference beetween crystallite size calculated by PXRD and crystal size observed by SEM analysis ?

let us consider some metal oxide particles, which shows cubic shape with some specific size of a singe cube in SEM image. now if we calculate crystallite size of the same with its PXRD data, then...

09 October 2019 6,326 5 View

Does an elastomer expand the same way every time it's stretched?

Say there is an elastomer strip of length L, width W and uniform thickness -T. All other parameters like material density, temperature are constant. I mark this strip with N points starting...

25 October 2018 740 3 View

Can a Bioanalyzer be used to test for DNA fragmentation?

I am working on a project using DNA from fairly old tissue specimens (>30 years). We will be extracting DNA from these samples for sequencing, but we want to see how fragmented the DNA extracts...

31 January 2018 3,636 1 View

What should be the pulse length of electroporation for transfecting mammalian cells?

I am currently optimizing electroporation conditions for mouse embryonic stem cells. What should be ideal range of pulse duration?

09 July 2017 1,752 1 View

Titanium electroplating methods

Hi all, I want to electroplate Titanium on steel. Most papers have discussed about molten salt as electrolyte. But can we use electroplating in aqueous media. Titanium is very reactive, will there...

05 July 2017 1,062 6 View

Removing ink without sheer force just by dipping in solvent or ink-remover?

I am looking for fast drying inks that that be completely removed without leaving any traces or ghosts behind by just dipping the substrate in ink remover. I am not able to apply any sheer force...

10 June 2017 1,721 2 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

Alternative to mediation analysis?

I am currently working on my dissertation and want to explore the role of competence as a mediator between the effect of colour of clothes on voting intention (focus on Western countries)....

21 February 2021 8,609 1 View

Color of spiro-ometad film?

What does the color of a spiro-ometad film indicate? I got purple, green, red, even black color of the spiro film. Is there anything we can get from the preliminary color analysis(e.g. oxidation...

21 February 2021 1,831 4 View

Any information about dinitrosalisylic acid reagent end point color stability ?

I work on estimation of alpha amylase activity using dinitrosalisylic acid reagent If i put the reagent to stope the enzymatic reaction and allow the reagent to react with the produced reducing...

17 February 2021 7,402 4 View

Negative result on natural product sample cholinergic assay?

i have been doing cholinergic assay on natural product and for some of the samples, i get negative value for the inhibition activity. can anyone help me explain the meaning of the negative value...

17 February 2021 4,118 1 View

Has anyone performed a colorimetric RT-LAMP assay using Lucigens LavaLAMP kit?

Hi there, my lab recently opted to use LavaLAMP from Lucigen instead of the Warmstart kit from NEB. However, Lucigen has yet to create a colormetric kit for RT-LAMP, and adding phenol-Red (pH...

17 February 2021 5,399 1 View

Can I measure absorbance efficiency with wavelength in a spectrophotometer?

I measure the wavelength of material in a spectrophotometer and it peaks at 275 and its absorbance is 100. I mix it with an adsorbent and it adsorbs the first material, but when I measure the...

16 February 2021 7,515 5 View

What is the actual chemistry going on between iodate and ascorbic acid?

I am studying biochemistry at university, as part of the course we do several titration experiments. In our handouts, we were given the following half equations: IO3- + 6H+ + 4e- I+ +...

16 February 2021 8,731 1 View

CAT assay in microplate?

I'd like to know if anyone can provide me with a protocol for traditional catalase enzymatic assay in a 96 well microplate, for cell line and/or C.elegans spectrophotometric measurements. Thanks!

11 February 2021 7,273 3 View

Mohammad Reza Toosi

As you notified, you must react the residual pollutant with a reagent to form a complex with a color or absorption in UV region.

Yurii V Geletii

The colorless means no absorption in the vis range. You may try to follow the consumption in the UV.

Abdelazeem Eltaweil

Colourless pollutants contain their functional groups that have abrorbance in the UV region, so you can follow the reaction by UV-Vis spectrometer, but firstly you have to determine its maximum wavelength via it's full spectrum.