DLS
Request form for external booking (Sample and analysis details)
Registration Form_DLS_external_users.pdf (459.73 KB)
Make
Brookheavan
Model
NanoBrook Omni
Facility Status
Working
Date of Installation
Facility Management Division
Centre for Sophisticated Instruments and Facilities (CSIF)

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Category

  • Spectroscopy and Spectrometry » Optical Spectroscopy

Booking Details

Booking available for
Internal and External Both
Available Equipment/ Mode of use
DLS mode for particle size measurement
ELS mode and PALS mode for zeta potential

Facility Management Team and Location

Facility In Charge
Prof. Kamendra P. Sharma
Facility Manager
Mr. Amol Hanumante
Facility Operator
Mr. Amol Hanumante
Facility Management Members
Prof. kamendra Sharma
Prof. Nandita Madhavan
Prof. Jyoti R. Seth
Prof Chidambar Kulkarni
Department
Chemistry
Lab Email ID
amol_ah@iitb.ac.in
Facility Location
Room No 360, Chemistry Department Facility lab II, 2nd floor, Chemistry Building, IIT Bombay
Lab Phone No
022-25764159

Facility Features, Working Principle and Specifications

Facility Description

Facility Description

The instrument is used for fast, routine, sub-micron measurements of size and zeta potential. Based on the principles of Dynamic Light Scattering (DLS) for particle sizing and distribution, and based on Doppler velocimetry (electrophoretic light scattering or ELS) for zeta potential measurement, most measurements take very less time. The instrument also includes Phase Analysis Light Scattering (PALS) measurements for samples with low mobilities

Features Working Principle

Features/ Accessories: 

  • 35mW 660nm diode laser
  • 15°, 90° and 173° angular measurements with temperature control (-5 to 110°C)
  • Bi – SREL universal Electrode assembly for use with water/ simple polar and with non polar liquids
  • BI-APDX high sensitive APD detector
  • 90 PDP: Debye plot software for absolute molar weight determination 

Instructions for Registration, Sample Preparation, User Instructions and Precautionary Measures

Instructions for Registration

User must contact the Technical operator before booking slot and discuss the experimental parameter

 

Instruction for Sample Preparation
  •  If Any reference material, solvents required are to be supplied by the user
  •  Liquid Samples are prepared by user in appropriate concentration required for the experiment and It should be filtered through appropriate sized Filter. Required volume of Sample solution is around 3 mL.
  •  In case any additional Chemicals/ materials  required for recording the samples, Charges would be additional.
User Instructions and Precautionary Measures

Samples / Solvents should not be toxic or hazardous.

Charges for Analytical Services in Different Categories

Usage Charges

 

Type of analysis

 

IITB users

Academic institutes

National

R&D lab

Industries / Non-Govt. Agencies

Particle Size Analysis/ hydrodynamic Diameter

 

100

200

500

1000

Zeta Potential Measurements

 

200

400

1000

2000

                                       All charges in INR. For external samples, in addition to above basic charges prevailing GST will be added.

Applications

Sample Details

Chemical allowed

yes

Allowed Substrate

no

 

Gases allowed

no

Substrate Dimension

no

Target dimension

no

Contamination remarks

no

Precursors/ Targets allowed

no

SOP, Lab Policies and Other Details

Publications