Dynamic Light Scattering (DLS)
  

Instrument Details

  

Make:- MALVERN Instruments
Model:-  ZEN 1600

Specification

  • Accurate, reliable and repeatable particle size analysis in one or two minutes.
  • Measurement in the native environment of the material.
  • Mean size only requires knowledge of the viscosity of the liquid.
  • Simple or no sample preparation, high concentration, turbid samples can be measured.
  • Simple set up and fully automated measurement.
  • Size measurement of sizes < 1nm
  • Size measurement of molecules with MW < 1000Da
  • Low volume requirement (as little as 121L)
  • Temperature dependent measurement range : 4 deg-90 deg

 

Dynamic Light Scattering
  

Working Principles

  

Typical applications of dynamic light scattering are the characterization of particles, emulsions or molecules, which have been dispersed or dissolved in a liquid. The Brownian motion of particles or molecules in suspension causes laser light to be scattered at different intensities. Analysis of these intensity fluctuations yields the velocity of the Brownian motion and hence the particle size using the Stokes-Einstein relationship.

  

Applications

  

Typical applications of Dynamic Light Scattering are the measurement of the size and size distribution of particles emulsions and molecules dispersed or dissolved in a liquid. e.g.: Proteins, polymers, micelles, carbohydrates, nanoparticles, colloidal dispersions, emulsions, ions.
  

User Instructions

  

Internal S.N.B.N.C.B.S Users:-

  1. User must submit the internal requisition form.
  2. User must submit the requisition duly filled in and signed by their respective supervisors.
  3. Users will be allocated definite slots and they submit have to submit their samples accordingly.

External Users (Other than S.N.B.N.C.B.S):-

  • Users should apply through mail
  • An appointment will be given as per queue and will be informed by email. 
  • The users will be informed about the appointment (date & time) by e-mail.
  • It is most desirable that the user is present in the DLS lab at the time of appointment. 

 

Payment Instruction:

 

  1. A Requisition letter addressing In-charge Technical cell along with
  2. Demand Draft in favour of S. N. Bose National Centre for Basic Sciences."
  3. Cash payment after completion of the expt. 
  4. Payment through Debit/Credit Card
  5. Wire transfer details  (see below details)
  

Contact Us

   

033 2335 5706/5707/5708, Extension:  264


 

DLS Charges

 
University /College [1] National Lab/ R&D Industry[1]
Without filter ₹700/- ₹700/- ₹1000/-
With filter ₹1000/- ₹1000/- ₹2000/-

 

 

[1] Per sample or per hour whichever is greater (in ₹ )

 

The Demand Draft should be in favour of "S. N. Bose National Centre for Basic Sciences." 
Letter, DD & Samples send to "Technical cell, S. N. Bose National Centre for Basic Sciences, Kolkata- 700106


 

[2] Money Transfer Information:

 

National Electronic Fund Transfer (NEFT) Details for Money Transfer

  1. Name of the Account Holder: S. N. Bose National Centre for Basic Sciences

  2. Bank Account Number:089302000000220

  3. Type of Account: Current Account

  4. Bank Name: Indian Overseas Bank

  5. Branch Name: Salt Lake City Branch

  6. Complete Address of Branch: Block - EA, Salt Lake City, Sector - 1, opp. Labony Estate, Kolkata - 700064.

  7. IFS Code of the Branch:IOBA0000893