Portable UV-Vis Spectrophotometer compatible with Liquid/Solid/Thin-film samples. Upgradable to fluorescence and dip probe for continuous monitoring
Honey is a very valuable natural food product with a variety of uses and hence is the most prone to adulteration across the globe.With TestRight’s spectroscopic devices, detection of honey adulteration isn't a challenge any more
Background
Composition of Honey includes refractive index, moisture content, T.S.S (total soluble solids), density, specific volume, capillary action, surface tension, pH value, viscosity, and homogeneity. Thus, changes in the honey's physical properties can be successfully detected on the employment of appropriate techniques, which is where Testright steps in. Techniques proved useful in information about the degree of adulteration in honey :
- fluorescence spectroscopy
- CCD- array spectrometer
Thus TestRight makes the process simpler by combining other existing techniques which can be very expensive and time-consuming.
Testright's Devices
Testright's micro cuvettes
Specifications :
- Successful detections can be made with sample sizes equivalent to that of a nanodrop; making the devices efficient and customizable quality assurance tools.
PRIZM ABS-SPECRTOMETERS
Specifications :
- Operate on back thinned CCD- array technology which is extremely small and has no rotating parts, making the device portable and compact .
- It comes with a range of detection, from 200 to 1100 nm, and can be used in Absorbance, Transmittance, Reflectance, Irradiance, Colour, Raman, and fluorescence measurements.
- The device has -
optional triggering functions for easy integration (trigger in/out and delay)
integration time range of 0.1ms-60ms
SMA 905 fiber connector with no need for optical alignment. - The package comes with advanced software with multi-tab features and analysis algorithms like Boolean Operations & Derivatives, along with free upgrades in the future.
PRIZM FLUORO FLUOROMETER
Specifications :
- indigenously developed, state-of-the-art narrowband tunable excitation sources which increase the sensitivity and dynamic range of detection; allowing the user to measure very high or low fluorescence signals without detector saturation.
- modular design ensures that the instrument can be upgraded for more excitation sources in the future as your demand expands.
- It has a built-in high-speed mini USB for full control of the spectrometer and is supported by the software SpectroSmart, making it compatible with all systems operating on Windows, Ubuntu or Android.
Research Observation
- Samples adulterated with - glucose syrup 20%(G), starch solution 3%(S), distilled water(W), and molasses (M) - were exposed to the light beam at 405 nm.
- The recorded spectra at pure honey (H) and adulterated honey with glucose solution 20%(G), starch solution 3% (S), distilled water (W), and molasses (M), at concentrations 1, 3, 6, 12 and 24%, respectively, are displayed in (Fig. 1-a, b, c & d ).
- It shows a decrease in honey peak with increasing concentration of fraud.
- The fluorescence spectra were measured for several types of honey purchased from grocery stores.(as shown in Fig. 2)
- Thus, the unique fluorescence spectrum for each honey sample illustrates the power and sensitivity of fluorescence spectroscopy for characterizing honey.
Conclusion
Testright's PRIZM range of spectrometers and classification models have been proved reliable for detecting adulterants in honey, and their application can be expanded to a wide range of products. And through the use of modular spectroscopy components and the fluorescence data, measurements could be taken outside the lab environment to test honey quality; be it during processing at factories or at the retailer shop to authenticate 100% purity of honey.
