CRF Intranet

UV-VIS-NIR Spectrometer (CRF Shared Facility IIT Dehli)

Perkin Elmer’s Lambda 1050 is an ultra-high double beam and double monochromators UV-Vis-NIR Spectrophotometer that has an operating range of 175 – 2500 nm. By measuring the deviance in light at specific wavelengths, the device can be used to conduct a spectroscopic analysis of sample materials. This spectrophotometer is primarily used for measuring the intensity of light absorbed or reflected off of a sample within the Ultraviolet to Near-Infrared range.  All types (non-hazardous) samples such as liquids, solutions, transparent solids, powders and thin films can be characterized using this facility. 

In UV-VIS-NIR Spectroscopy, there are two types of measurements depending on the sample types: UV-VIS Absorption spectroscopy and UV-VIS Diffuse Reflectance Spectroscopy (DRS). Generally in UV-Vis Absorption spectroscopy, we record absorption or transmission spectrum in the VU-Vis range for normal (or close to normal) incidence. As this technique is used to characterize samples in thin film form or in liquid or solution form. In the case of granular/powder or opaque samples or thin films of high surface roughness, we use DRS. 

Main Features of the Equipment:
  1. Model: & Company Lambda 1050 (PerkinElmer)
  2. Source : Pre-aligned tungsten-halogen and deuterium lamp
  3. Detectors : 1 Photomultiplier R6872 (200-850 nm) , 2. Peltier-cooled InGaAs (850-1800 nm) ,  3. Peltier-cooled PbS (1800-2500 nm)
  4. Wavelength range : 300 nm-2500 nm
  5. UV/Vis Resolution : 0.05nm
  6. NIR Resolution : 0.20 nm
  7. Band pass : 0.05 nm - 5.00 nm in 0.01 nm increments UV/Vis range, 0.20 nm - 20.00 nm in 0.04 nm increments NIR range
  8. Sample Type: liquids, solutions, transparent solids, powders and thin films
  9. Applications of Equipment : Absorption/Reflectance measurements in the UV-VIS-NIR range of ~300-2500 nm.
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CRF Charge List

How to Contact

Mailing Address for Samples & Lab Location: 
Room No. ​MS 702-B, Nano Lab,
Department of Chemistry,IIT Delhi, Hauz khas, New Delhi 110016, India 
Phone: +91-11-26597348 


Prof. Sameer Sapra 
Department of Chemistry IIT-Delhi, 
Hauz Khas, New Delhi – 110016 
Phone number: 011-2659-1561

Operational Incharge

Dr. Madhu Bochalya,
Principal project scientist
Nano Chemistry Lab 
Indian Institute of Technology, 
Delhi Hauz Khas, New Delhi-110016, 

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External users 

1. Registration process (One Time): New Registration for external users.User Verification: Upload photo of Front side and back side of valid Identity card issued by the organization (only .jpeg format, file Size less than 1 Mb, height less than 1000 pixels, width less than 800 pixels). Undertaking: Download the undertaking template ( Download Link ). Duly filled, signed and stamped form should be uploaded in .pdf format. Confirmation: An email will be sent to the user after verification of the documents.

2.Before planning to avail the Instrument facility of CRF IIT Delhi: user must visit -> Facility -> select the desired facility from left side navigation list.  Read carefully all the relevant information such as required sample type, testing charges and instrument location. Be prepared with details of the samples.

3.Log in and Click on Booking Appointment Tab: All the information relevant to testing must be filled in instrument booking form. In case user does not provide the required information the booking is liable to be rejected. User can upload the relevant existing data of their samples that might help in the measurements.

4.Sample submission & Payment Process: Once the application is submitted, the in-charge will verify the details and approve the request.External users must wait for the approval before making the payment and submitting the samples to concerned lab. After approval the payment should be made by the user. The payment transaction details need to be submitted online before appointment date time.

5.CRF Users can pay amount online using following details:
Beneficiary/Customer's Name: IRD ACCOUNT IITD
Bank Account Number:  10773572600  
Bank Name: State Bank of India Branch Name: IIT Branch
Branch Code: 01077
please write "CRF _Instrument Name" in the Remarks section while paying. Save the receipt file and upload in the crfbooking system online against your application.Payment can also made in form of demand draft in favour of " IRD ACCOUNT IITD " Payable at New Delhi.6.IIT Delhi 
GST Number : 07AAATI0393L1ZI
PAN Number : AAATI0393L

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