Someone assumed an equation for turbidity in spectrophotometry, where does he get the 2.3 from? And is his answer correct?

How can I use UV-visible spectrophotometer to achieve turbidity unit (cm-1)? How absorbance can be converted to turbidity unit (cm-1)? Please give me the details. I need to catch such a graph as attached.

In the formula for the turbidity measurement from UV-Vis data, it is given that 

turbidity=(2.3*A)/L, where A is the absorbance and L is the optical path length. Can anyone tell me why there is a constant 2.3 in this formula? Is it same for all kind of materials?

Thanks in advance.

For liquids.

I have been looking into turbidity measurements in different contexts, and I find that turbidity is measured at various wavelengths depending on the experiment. For example, for bacterial growth curves it is measure at 600 nm. But, for collagen fiber growth / reconsitution experiments 310 nm is frequently used. I don't quite understand why there is a difference. For collagen fiber growth experiments, I understand that the aromatic amino acid residues will not absorb beyond 310 nm. But at 600 nm I can't think of any specific absorption either from collagen. What is the rationale for wavelength selection then ?

I want to know that what these three parameters represents basically?

I prepare thin film of ZnO by pld and measured its Absorbance Uv-Vis ,then i need to Calculate Absorption coefficient  from Uv.Vis. Data.

I have different polymer solutions and I hypothesize that water molecules are retained based on the water-polymer interactions, so the amount of free water is less to intercat with drug tablet.

To validate I tried to find the water evaporation rate from each polymer solution from TGA.

But I see variation due to its high dependence in initial mass.

So now I think to find the Activation energy of water evaporation process. want to know whetehr this is correct, or whetehr there are better ways to prove my hypothesis. May be DSC?

Unfortunately, I found my name as a senior author of research entitled "Multifunctional prosthetic polyester based hybrid mesh for repairing of abdominal wall hernias and defects" published in Carbohydrate Polymers 2019, 223, 115027 with authors(Shokry,M.M.,I.A. Khalil, A.Elkasapy, A.Osman & I.Elsherbiny) By putting his name Moataz Shokry instead of Mohamed Shokry so that his place of work is not related to my work (Alexandria higher institute of engineering). I ask your administration to take the legal action regarding this researcher and his place of work for his assault on others' intellectual property through your gate. Waiting your reply, have a nice day.

Prof. M.M.Shokry

Faculty of Veterinary medicine

Cairo University, Giza, Egypt

Hello!

I would like to perform UV/VIS- turbidity measurements of Bovine Submaxillary Mucin (BSM) in MilliQ water at different concentrations (2-10 vol%) in order to get to know how much light is absorbed by the BSM solution. I found a paper "Enhanced Bioavailability of Polyaromatic Hydrocarbons in the Form of Mucin Complexes" in which the absorbance peak of BSM is around 280 nm.

Is it possible to use just the solvent, here MilliQ water, as my reference measurement to compare it with my samples or do I have to do a certain calibration with a standard?

Thanks in advance.