CSIR-Central Glass & Ceramic Research Institute
(A Unit of Council of Scientific and Industrial Research)

सीएसआईआर-केंद्रीय कांच और सिरेमिक अनुसंधान संस्थान
(वैज्ञानिक और औद्योगिक अनुसंधान परिषद की एक इकाई)


  
  
 

Hand-held Electronic Nose for Analysis of Tea Aroma
Technology Summary
An embedded e-Nose system for quality testing of finished tea and tea-fermentation process has been developed DST-CSIR Sensor Hub, Kolkata. The portable system comprising mostly indigenous sensor modules is capable of generating tea aroma index in 1 minute from 50 gram of tea sample.


Benefits
  • Rugged and portable system, ideal for field testing
  • User-friendly GUI with touch-screen
  • Faster and cheaper vis-a-vis tea tasters' evaluation
  • Low maintenance cost


For More Information and Licensing Opportunities Contact:
Dr. A. Sen, Administrative Coordinator, DST-CSIR Sensor Hub, Kolkata 700032, INDIA
Tel: +91 33 23223449; email: asen@cgcri.res.in
   





Arsenic Detection Kit for Drinking Water
Technology Summary
A user-friendly technology has been developed at DST-CSIR Sensor Hub, Kolkata for estimation of arsenic in drinking water. The amount of arsenic in water can be detected by paper strips exploiting a simple colour change. This reliable method allows detection of arsenic levels in the field to assess compliance with the WHO guidelines (max. 10 ?g/L).


Key Features
  • Arsenic Detection Kit provides results within a range of 5 - 250 μg/L (1 μg/L = 1.001142 ppb)
  • Rugged and portable kit, ideal for field testing
  • No lab analysis needed-arsenic levels can be detected by a lay person using a colour chart




For More Information and Licensing Opportunities Contact:
Dr. A. Sen, Administrative Coordinator, DST-CSIR Sensor Hub, Kolkata 700032, INDIA
Tel: +91 33 23223449; email: asen@cgcri.res.in
   









DST-CSIR Sensor-Hub Test Kit for Detection of Arsenic in Drinking Water

At DST-CSIR Sensor Hub, the researchers of Calcutta University developed a technology for estimation of arsenic in drinking water. In this method arsenic in drinking water will be treated with specific reagents to get rid of interfering species and then arsenic will be converted to arsine by addition of strong reducing agents and the amount of arsine produced will be detected by paper strips with detector element immobilized at the centre. These strips can detect arsenic concentration in the range of 5 ppb- 250 ppb by comparing colour developed on the detector element. The method can detect total arsenic i.e., arsenite [As (III)] and arsenate [As (V)] present in drinking water. The detection is semi-quantitative since there are options for 5, 10, 20, 50, 100, 250 ppb concentrations. Anything in between could be judged by diluting the sample and repeating the test.

Some salient aspects of the Test Kit are given below:

Removal of sulfide interference: In this method the drinking water is first treated with a specific reagent to remove of sulfide interference. This method can detect arsenic in presence of 10ppm of sulfide interference.

Stability test: The test kit is stable up to 4 months and further work has been going on to improve the stability.

Comparison with other kits: The developed kit is comparable to E-Merck test kit.




Moisture evaluation with microcontroller based instruments for measuring trace moisture present in transformer oil

Mesoporous γ-alumina based capacitive sensors have been developed for detection of trace moisture. Thin films of ?-alumina-based sensors have been fabricated by sol-gel and screen-printing techniques and the necessary circuitry has been made. The meters can detect moisture from 5 to 20 ppm in transformer oil.



    Updated on: 05-04-2016 15:36 
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