L-carnitine UV absorbance?

Helo can any body help ! if you 100% correct answer for L-CARNITINE UV LAMDA MAX ABSORBANCE in nm?

01 February 2018 8,953 1 View

my question is in electrochemistry?

If my cell is oxygen clark electrode cell, what is my refrence electrode - working electrode -counter electrode and where does the reaction occurs ,, what is the specific role of each...

10 November 2017 279 2 View

i have a question on UV-VIS?

Drear Dr If iam doing extraction, say using seperatory funnel , and in each wash i need to check for a certain compound that it is going to zero concentration . using UV -VIS and it is no more...

09 October 2017 9,948 3 View

UV-VIS need help ?

Hi Please i need help . if iam doing extraction ! and in every wash , iam cheking the wash by UV_VIS ,, to make sure that material is dissapearring from the solution ? can any please show me How

09 October 2017 6,307 5 View

I have a question in UV-VIS?

Can any one help please , if iam doing solid phase extraction, say usuing sepratory funnel , ineed after each extraction check the wash for a certain compound that its not there any more ie after...

09 October 2017 6,445 0 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

Anyone that can help with Maxquant TMT16plex which is missing?

Hi I am very new to proteomics analysis. I have got raw files from core facility running thermofisher TMT 16plex 4 hours. I cannot find on maxquant the option TMT16Plex there is only up to 11...

25 February 2021 1,675 3 View

How to properly calculate the fluid solid heat transfer between polypropylene matrix and glass fiber in a porous medium?

I'm building a cfx model of thermoplastic pultrusion process on ansys and i have a doubt on how is the proper way to set this parameter in a porous medium

24 February 2021 1,915 1 View

Steps to calculate activation energy by coats & redfern method?

I'm a chemistry student and I'm researching the kinetic degradation of mixed plastic waste. I'm having trouble calculating the activation energy by the coats & Redfern method. The data that...

24 February 2021 974 1 View