Appendix XI: UV–vis
Manufacturer: Agilent Technologies
Product name: Cary 8454
UV–vis diode-array spectrophotometer
New this year: Photodiode array (PDA) technology, the successor to the Agilent 8453 UV-Vis
Used for: Lab process, handheld analysis
Special Features: Pre-aligned light sources, hard-surface buttons, cell holders (standard, thermostatted, long-path), cell transport, sipper, autosamplers, pre-aligned lamps, single audit trail, supports electronic records and passwords, no moving parts
Software: 21CFR11 compliant, may be used in other equipment
Suggested applications: Routine applications QA/QC pharma, kinetics.
Primary benefits: complete spectrum with every measurement, from 190 to 1100 nm., simultaneous multiwavelength measurement, component analysis and tablet dissolution.
Unique features: UV–vis spectrum in less than 1 s.
Manufacturer: Agilent Technologies
Product name: Cary 7000
Universal measurement UV–vis spectrometer
New this year: Complete sample characterization in a single sequence without moving the sample
Used for: Lab, process, handheld analysis
Measurement modes: Specular reflectance, diffuse reflectance, diffuse scattering, glossy scattering, scattered transmission, direct transmission
Accessory/component: Solids autosampler
Special features: Complete sample characterization, absolute reflection and transmission, diffusely scattered transmission and reflection, huge sample chamber, control beam collimation, simple method set up, 10 Abs range, multi-angle, absolute reflection (R), transmission (T), absorbance (A) and scattering measurements
Software: Available as separate product, may be used in other equipment
Suggested applications: Research, development and QA/QC in optics, thin films/coatings, solar and glass, challenging samples such as high optical density filters.
Unique features: Measure absolute reflection and transmission at variable angles, 10 Abs range, direct-view detection system
Manufacturer: Areo Creative Corp.
Product name: Mini Spectral Sensors
UV–vis
Used for: Process, handheld
Dimensions: 25 x 25 x 5 mm
Weight: 10–12 g
Measurement mode: Transmission, reflection, excitation
Special features: Sensor modules with smallest size/volume, but function as mini spectrometers; available as separate product, may be used in other equipment.
Suggested applications: Biological science, medical and health care, pharmaceutical, agriculture, food/beverage industry, chemistry, material science, homeland security, military and defense, environment science, color sensing
Unique features: Capability of accurate spectral measurements, high efficiency in detecting input light signals, light weight with compact sizes and volumes, easy integration with mobile devices and handheld units
Manufacturer: Distek, Inc.
Product name: Opt-Diss 405™
UV–vis spectrometer dissolution tester
Used for: Lab, process analysis
Accessory/component: Integral probe for dissolution testing
Software: Available as separate product, 21CFR11 compliant, cGMP compliant, compatible with other manufacturers' equipment
Suggested applications: In situ dissolution testing
Manufacturer: Drop Technology
Product name: TLDA Microvolume Spectrophotometer
Microvolume (sample size = 1–4 µL) UV–vis spectrometer
New this year: Instrument based on Drop Science technology
Used for: Lab analysis
Dimensions: 454 × 250 × 330 mm (D × W × H)
Weight: 11 kg
Measurement mode: Drop Science technology
Specialty accessory description: Wavelength range 200–750 nm. Technology used is unlike other microvolume instruments. The drop under test sits on a quartz plinth, without any disturbance, while the measurement is being made. Removal after measurement is simple: just wipe the sample from the quartz. Is also available stand-alone (see Accessories).
Special features: Only a small sample volume (1-4 µL) is required. Can be used where larger volumes and dilution may be required. Very fast (milliseconds) measurement. Pulsed xenon light source (no lamp needing regular replacement). Good for high-value samples.
Software: Available as separate product, cGMP compliant
Suggested applications: dsDNA, ssDNA, RNA, protein quantification
Primary benefits: Ease of use, lack of cross contamination from one sample to another and the ability to calibrate the instrument using NIST traceable standards. Because of our technology, accuracy and reproducibility can be achieved in all application areas.
Unique features: Sample loading and removal for either right or left handed operation. Quick and simple sample chamber opening and closing.
Manufacturer: Ocean Optics, Inc.
Product name: STS-UV
UV–vis spectrometer
New this year: UV spectral analysis
Used for: Lab, process, handheld applications
Dimensions: 40 x 42 x 24 mm; weight: 60 g
Measurement mode: Absorption, transmission
Special features: Wavelength range = 190-650 nm, S/N > 1500:1, Dynamic range= 4600:1
Software: Available as separate product, may be used in other equipment, compatible with other manufacturers' equipment.
Suggested applications: Quality control, remote sensing, low-concentration absorbance measurements, high intensity laser characterization, point of care diagnostics, emission spectroscopy
Primary benefits: Optical resolution, sensitivity and stability comparable to much larger, more expensive spectrometers.
Manufacturer: SciAps, Inc.
Product name: Navigator
UV–vis–IR spectrometer
New this year: Portable broadband absorption spectrometer. Wide spectral range from 350 nm to 2500 nm captures signature absorption patterns spanning from UV through NIR. This allows for a wider variety of minerals and compounds to be identified and is compatible with TSG and SpecMIN for field geologists.
Used for: Handheld/portable applications
Dimensions: 14.5 x 13.5 x 7.5 in.
Weight: 17.95 lb (8.14 kg)
Suggested applications: Mineral exploration, phamaceuticals, food safety, university, field geology and chemistry programs, plastics recycling and quality, general products quality
Primary benefits: Portable, field hardened absorption spectrometer spectral range from 350nm to 2500 nm, capturing signature absorption patterns spanning the UV through the NIR, data from multiple instruments are easily uploaded for comparison and logging.
Unique features: Broad spectral range from 350 nm to 2500 nm, robust spectrometer designed for water, dust and shock resistance, meeting IP 54 standards; pistol-grip probe holds any smartphone or tablet Java software engine for exceptional compatibility for exporting data. Instant connectivity to the cloud via wireless and broadband, compatible with TSG and SpecMIN for field geologists, compatible with common off-the-shelf chemometrics programs like Camo Unscrambler.
Manufacturer: SpectroClick Inc.
Product name: AAH-200
UV–vis spectrometer
New this year: The company's first product is a portable visible absorption spectrometer.
Used for: Handheld/portable analysis
Dimensions: 9 cm × 9 cm × 3.5 cm
Weight: 0.5 kg
Measurement mode: Transmission
Special features: Portable, USB-powered, unique, patent-pending grating arrangement that exploits high pixel count, eight-bit per color cameras to do spectrometry with three order of magnitude dynamic range.
Software: Proprietary software required; may be used in other equipment.
Suggested applications: Education, sample screening and triage, back-country analysis.
Primary benefits: Self-contained. Runs on power from a USB port.
Unique features: Uses self-calibrating software to compensate for limitations of low-cost hardware.
Manufacturer: StellarNet Inc.
Product name: SILVER-Nova
UV–vis spectrometer
New this year: New high performance spectrometer; ruggedized enclosure with a fiber-optic input for the 190-1110 nm wavelengths
Used for: Lab, process, handheld applications
Measurement modes: Absorbance, transmission, reflectance, radiometric
Special features: High sensitivity, TE cooled, widest range, rugged
Software: Available as separate product, may be used in other equipment, compatible with other manufacturers' equipment.
Suggested applications: Wide-range UV–vis–NIR spectroscopy
Primary benefits: High sensitivity and wide range (190-1110 nm)
Portable and Wearable Spectrometers in Our Future
December 3rd 2024The following is a summary of selected articles published recently in Spectroscopy on the subject of handheld, portable, and wearable spectrometers representing a variety of analytical techniques and applications. Here we take a closer look at the ever shrinking world of spectroscopy devices and how they are used. As spectrometers progress from bulky lab instruments to compact, portable, and even wearable devices, the future of spectroscopy is transforming dramatically. These advancements enable real-time, on-site analysis across diverse industries, from healthcare to environmental monitoring. This summary article explores cutting-edge developments in miniaturized spectrometers and their expanding range of practical applications.
AI, Deep Learning, and Machine Learning in the Dynamic World of Spectroscopy
December 2nd 2024Over the past two years Spectroscopy Magazine has increased our coverage of artificial intelligence (AI), deep learning (DL), and machine learning (ML) and the mathematical approaches relevant to the AI topic. In this article we summarize AI coverage and provide the reference links for a series of selected articles specifically examining these subjects. The resources highlighted in this overview article include those from the Analytically Speaking podcasts, the Chemometrics in Spectroscopy column, and various feature articles and news stories published in Spectroscopy. Here, we provide active links to each of the full articles or podcasts resident on the Spectroscopy website.