An Editors' Pick via #OPG_OL: Compact on-chip spectrometer with high spectral channel density using cascaded filters https://bit.ly/4rDYR1R #WaveguideGratings #Spectrometers💡⚛️
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#Spectrometers
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Posts tagged #Spectrometers
Abstract This study assessed the feasibility of using portable infrared and handheld Raman devices for the rapid screening of alcohol-based gel hand sanitizers to detect potential adulteration or misbranding. Alcohol potency was estimated by analyzing the concentration-dependent hydrogen bond-induced peak shifting characteristic of alcohol–water mixtures. Specifically, alcohol concentration in water (v/v%) was plotted as a function of the ratio of two characteristic peak positions affected by this shifting, yielding linear responses between 30%–100% for infrared spectroscopy and 40%–100% for Raman spectroscopy. Calibration equations derived from these curves were applied to estimate alcohol concentration, resulting in average errors (± standard deviations) of 1.6% (1.2%) for infrared spectroscopy and 2.4% (1.7%) for Raman spectroscopy, compared to gas chromatography with flame ionization detection (GC-FID). A total of 24 products were analyzed using this screening workflow, with results used to prioritize samples for further analysis via official compendial methods. All 21 samples identified as violative or presumptively violative by the rapid screening devices were confirmed as violative using GC-FID, while all three samples classified as presumptively non-violative were confirmed as non-violative. This method may be suitable for field deployment at locations such as mail facilities, points of entry, and express courier hubs, where expedited screening of these products is beneficial. Its implementation could enhance regulatory enforcement efforts and support consumer safety by identifying non-compliant products more efficiently.
New from Applied Spectroscopy!
Leveraging Hydrogen Bond-Induced Peak Shifting to Determine Alcohol Concentration in Suspect Gel Hand Sanitizers Using #Portable #Infrared and #Handheld #Raman #Spectrometers
Read more: https://doi.org/10.1177/00037028251345820
#SAS #Spectroscopy #HydrogenBond
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From UV to NIR, our range of #Spectrometers delivers high-speed, compact, and accurate spectral analysis for research, OEMs, and industrial applications.
Browse our available solutions, all engineered for precision and versatility: https://ow.ly/HXmm50X2u5V
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If you’re attending SciX 2025 next week, come learn about our newest iteration of FT-NIR spectrometers, offering 25 times faster speed and increased data processing flexibility. Full schedule and details 👇
https://ow.ly/zJ7x50X2sMB
#SciX2025 #Spectrometers #FTNIR
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Quantifying #Methane #Emissions, #US #Landfills
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doi.org/10.1126/scie...
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#GIS #spatial #mapping #remotesensing #earthobservation #landfill #solidwaste #waste #climatechange #spectrometers #spatialanalysis #systematic #monitoring #measurements #exceedance #wastemanagement #mitigation #engineering
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A story on our stress-engineered broadband #plastic #spectrometers www.science.org/doi/10.1126/.... This SMP material platform offers many exciting opportunities for future development of inexpensive, AI-enabled computational light detection systems.
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1/14: As a DIY enthusiast who loves #spectrometers and💡, I am excited to share the story of LaoKang, a Chinese maker who turned a #DIY hobby project into a €67 #spectroscopy product. His "Garden Spectrometer" is making spectroscopy accessible by bringing a €1000+ tool for under €67 ($75)🧵👇.
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Working with Profs Sun and Cai, we developed a tunable vdW optoelectronic interface that identifies materials without complex spectral reconstruction, ideal for compact, cost-effective #2D material based #spectrometers @eng.cam.ac.uk @cambridge-ee.bsky.social
www.science.org/doi/full/10....
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Thank you IEEE Photonics Society for the cool plaque. Most importantly, for giving me the fantastic opportunity to talk about #spectrometers at 11 locations, 10 countries. Made many new friends, and future collaborators! If you are thinking about applying, go for it!
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If you are in Dhaka, join me on Dec 24 for my first-ever technical talk in Bangladesh! I’ll briefly talk about my career, and then switch to miniaturising optical #spectrometers & future opportunities in this field. My final talk as a IEEE Photonics Society Distinguished Lecturer.
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Looking forward to my IEEE Photonics Society Distinguished Lecture for the Malaysian Chapter. I will discuss the miniaturisation of optical #spectrometers , including our recent work on a BIC #metasurface spectrometer. The next will be at Dhaka University, #Bangladesh on the 24th
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Two weeks ago I had an amazing time in presenting my IEEE Photonics Society distinguished lecture on miniaturised #spectrometers in breathtaking Naples! All made possible because of the brilliant and generous hosting by IEEE PS president Italy chapter @antigonemarino.bsky.social
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Apply now for the first intercomparison #workshop of #nitrate ion chemical ionization time-of-flight mass #spectrometers at the new twin chamber facility ACD-C @TROPOS_eu in #Leipzig @EUROCHAMP2020 > www.tropos.de/aktuelles/veranstaltunge... /...
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Mobility #particle size #spectrometers: #Calibration procedures and #measurement uncertainties. Paper by our colleagues in Top10 Most Downloaded Articles @ASTJournal Published in Last 2 Years: www.tandfonline.com/doi/full/10.1080/0278682... #MPSS #PNSD @TROPOS_de...
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