Hi experts in glycerine, can i know how to reduce uv absorbance in crude glycerine without using adsorbent treatment??

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Using a Jetson Nano with Waveshare UPS Module B in a car needing 8.4V/2A. How can I charge it using the car's system?

Hi everyone, I'm currently working on a project where we are using a Jetson Nano in a car, supported by a Waveshare UPS Module B for battery backup. To charge the UPS Module, we need a supply of...

19 May 2024 205 3 View

Is there a open source raman spectroscopy program for pattern identification analog to QualX and Match for XRD patterns?

I have two patterns one is pure Brucite and the second is brucite with my adsorbed material and I want to identify the impurities on the second pattern. Thank you for any help you may provide.

22 April 2024 7,592 0 View

How about Pulsed Plasma Thrusters ?

I would like to ask about the thrust in PPT (Pulsed Plasma Thrusters) which uses solid propellants such as Teflon. We know that the thrust force is given as F= T= d(m ve)/dt = m dve/dt + ve...

18 March 2024 9,604 3 View

What is alloantibodies?

General difference between antibodies and alloantibodies

02 January 2024 1,534 1 View

How to open centrifuge bucket-cap?

We are using the ROTINA 380 R (Hettich GmbH ) centrifuge machine in our TB Lab. We use it on a routine basis to concentrate TB samples using 2% NaOH. A lab assistant reported to me a few days ago...

09 November 2023 9,509 1 View

I'm a physicist and I was wondering is the term 'staining' used in geology equivalent to the term 'adsorption' in chemistry ?

I was examining a fluorite sample using EDAX and it didn't detect any uranium but when using XPS we detected U on the surface of the fluorite. Could this be interpreted as uranium salts being...

24 August 2023 5,057 4 View

What's the value of S11, S12, and S44 for cubic crystals of magnetite nanoaprticles?

Greetings, Recently, I synthesized magnetite (Fe3O4) nanoparticles, and I want to find out the Youngs modulus as well as uniform stress deformation mode (USDM). To calculate those, I need the...

08 August 2023 266 0 View

Hi, currently I'm doing a project about salt & sugar measurement in liquid food, what sensor should I use to measure sugar?

I've done research on that, but I haven't found any suitable sensors to use. Please help me

22 May 2023 6,665 2 View

How to design positive control for RT-PCR in virus detection?

Hello. Is there any option to design positive control other than using MEGA software? Does anyone know or expert using the MEGA Software?

08 May 2023 1,555 1 View

Refusing to give interview- how to analyse and what is the authority in the Qualitative Research?

I was given appointment by one high level policy maker. Questionnaire was provided as per request. The policy maker saw the questionnaire and then gave me a date for interview (official record has...

04 May 2023 9,299 6 View

How are clinical and environmental yeast/fungal strains stored usually in mycology laboratories?

I understand a glycerol stock for long-term preservation would be ideal, but how are working cultures generally stored? Mainly concerning Candida spp. isolates. A few references mention that they...

22 July 2024 6,592 3 View

Can Langmuir constant related to bonding energy (Kl) and Freundlich exponent (1/n) indicative of ads intensity show opposite trends with temperature?

The adsorbate is Arsenic and the adsorbent is a soil

18 July 2024 332 8 View

Can we calculate the CO2 adsorption capacity(mmol/g) of a solid adsorbent (MOF) using CO2_TPD analysis?

what is the relationship b/w TCD signal(a.u) and CO2 desorbed (mmol/g) ? can we plot CO2 desorbed(mmol/g) Vs Time(min) from TPD data?

15 July 2024 3,248 1 View

How do I identify And count the number of active sites of an adsorbent?

Jarosite is obtained from bioleaching residue and I want to determine if there are increased active sites biogenic jarosite compared to chemical synthetic jarosite.

10 July 2024 8,132 2 View

Transparency oin-in-water emulsion but larger size particle ?

Dear Colleagues, I am currently formulating oil in glycerin/water nanoemulsionn of Thymol and Eugenol, using cationic surfactant. After phase diagram, I got trouble that the clear and...

03 July 2024 4,200 2 View

Glycerol/serinol hplc separation?

Bonjour, j'ai une question si quelqu'un a une réponse. J'ai une colonne Uptisphere Strategy 100 Å Bonding HILIC-HIT avec une taille de particules de 3 µm et une longueur de 100 mm. Je n'arrive pas...

24 June 2024 7,201 1 View

How to prepared Laemnili buffer 5x?

how avoid forming lumps in disolving Laemnili buffer 5x? due to presence of undissolved bromoclesol blue and thick glycerol. Please tell me how to resolved this issue.

12 June 2024 10,034 3 View

Can untransformed pET22b be isolated from five days old pellets stored at -20°C?

I've pelleted down the overnight ampicillin supplemented cultures of DH5ALPHA for pET22b isolation 5 days ago and stored them on -20°C without adding any buffer or glycerol. Would the cells be...

09 June 2024 6,479 2 View

Which is the best media for revival of Pseudomonas aeruginosa?

Hi I am trying to revive Pseudomonas aeruginosa from frozen glycerol stock and also from cryobeads. But there was no bacterial growth. I used nutrient agar, tryptone soy agar to streak on. Also I...

09 June 2024 6,651 9 View

DNA foot-printing buffer components? What are their roles?

Hi, I am learning to perform footprinting experiment. In the protocol I have there are the following components of the reaction buffer: HEPES buffer (7.8 pH), glycerol, BSA, DTT, KCl, MgCl2,...

28 May 2024 1,317 0 View

Abdelkader BOUAZIZ

Dear Faiz Halim, if the absorption is due to the presence of impurities, you can purify it by distribution under reduced pressure. My Regards

Asit Baran Samui

I agree with Abdelkader. You may distill it to purify. You may also treat it with activated carbon black at around 60 degree C and then filter to remove impurities.