Introduction
A Vis NIR spectrometer is an analytical instrument used to measure the spectrum of the samples over the visible (Vis) and the near-infrared (NIR) wavelength regions, and it is used in the food, the agriculture, the pharmaceutical, the chemical, and the many other industries for the analysis of the samples. The Vis NIR spectrometer measures the absorption, the reflectance, or the transmittance of the light by the sample over the wavelength range, typically from about 400 nanometers in the visible region to about 2500 nanometers in the NIR region, and the spectrum provides the information about the color and the electronic transitions in the visible region and the vibrational overtones in the NIR region, which are related to the composition and the properties; the Vis NIR spectrometer consists of a light source, a wavelength selection device, a sample holder or a probe, a detector, and a control and a data analysis system, and it provides features such as the wavelength scanning, the non-destructive measurement, and the data analysis with the chemometric models; the Vis NIR spectrometer is used for the analysis of the moisture, the protein, the fat, and the other components in the food and the agricultural products, for the measurement of the color, for the quality control, for the process monitoring, for the research, and for many other applications, and it is available as the benchtop and the portable instruments; the Vis NIR spectrometer is an essential instrument for the spectral analysis. Vis NIR spectrometers are used in the food and the agriculture industry, in the pharmaceutical industry, in the chemical industry, and for many other applications. With their Vis NIR measurement, Vis NIR spectrometers are essential for the non-destructive analysis.
VIS-NIR Spectrometer LVNS-T2012
- Spectrometer offers an advanced miniature design with a spectral wavelength of 380 to 960 nm. It has a silicon-based sensor with a high pixel count to ensure sharp and reliable readin...
VIS-NIR Spectrometer LVNS-T2010
- Spectrometer has a compact design that offers a spectral range of 300 to 1100 nm. Its 2.0 interface enables seamless data transmission and system integration. The 16-bit A/D conversio...
VIS-NIR Spectrometer LVNS-T2011
- Spectrometer with an extended spectral range of 350 to 1100 nm, enabling precise analysis from visible to near-infrared regions. It features a fixed grating mechanism that prevents sca...
Standards
European Pharmacopoeia 2.2.25-Spectrophotometry, ultraviolet and visible
ASTM E275-08(2022)-Standard Practice for Describing and Measuring Performance of Ultraviolet, Visible, and Near-Infrared Spectrophotometers
USP General Chapter <857>-Ultraviolet-Visible Spectroscopy
Complies with the above standards, but is not limited to them.
Features
1. Visible-near infrared (Vis-NIR) spectrometer for spectral measurement across 325-2500 nm range.
2. Combined silicon and InGaAs detector for seamless Vis-NIR spectral acquisition in one instrument.
3. Suitable for agricultural, food, pharmaceutical, chemical, environmental, industrial and research labs.
4. Includes light source, monochromator, dual detector, sample compartment, controller, software and manual.
5. Supports Vis-NIR spectral analysis for composition measurement, quality control and material identification.
FAQ
Q1: What testing scenarios is this spectrometer mainly applied to?
A: The Vis-NIR spectrometer is used in agriculture, food and beverage, pharmaceutical, chemical, environmental, industrial, textile, and research to measure absorption, transmission, or reflection spectra across the visible (380-780 nm) and near infrared (780-2500 nm) ranges for compositional analysis, quality control, and material identification. It supports agricultural analysis (grain protein, moisture, oil content; soil nutrients; forage quality), food testing (meat fat/protein/moisture, fruit quality, dairy composition), pharmaceutical (polymorphism, content uniformity, raw material identification), chemical (polymer characterization, chemical composition), and industrial (textile, paper, coating analysis).
Q2: What standards does the spectrometer comply with?
A: The Vis-NIR spectrometer follows relevant ISO, ASTM, IEC and GB/T standards including ISO 12099 (animal feeding stuffs - NIR spectrometer guidance), ASTM E1655 (standard practices for infrared multivariate quantitative analysis), IEC 61010 (safety), and GB/T standards for NIR analysis. The hardware complies with applicable EMC standards. Calibration should use certified wavelength standards (holmium oxide, rare earth glass) and NIST-traceable reflectance/absorbance standards. For quantitative work, multivariate calibration models (PLS, PCR) should be validated per ASTM E1655.
Q3: What is the warranty period for the whole spectrometer and key components?
A: The whole Vis-NIR spectrometer is covered by a 12-month warranty. The light source (tungsten-halogen), monochromator, dual detector (silicon for Vis, InGaAs for NIR), sample compartment, controller, software and housing are covered, while light source lamp, cuvettes, calibration standards, desiccant (for InGaAs detector cooling if applicable) and fuses are consumables or accessories. Damage from improper use, lamp failure, optical contamination or unauthorized repair is excluded. Extended warranty may be available.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires trained personnel familiar with NIR spectroscopy and multivariate calibration. We provide operation manuals and training. Proper instrument setup (warm-up, wavelength calibration, reference/blank measurement), sample preparation (homogenization, temperature equilibration, proper sample presentation - rotating cup for powders, transmission cell for liquids, integrating sphere for solids), measurement parameters (spectral range, resolution, scans to average), calibration model application (PLS/PCR prediction), and maintenance (lamp replacement, detector cooling, desiccant change) are important for accurate results.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Wavelength calibration recommended every 3-6 months using certified standards (holmium oxide for Vis, rare earth glass for NIR). Photometric/intensity calibration every 6-12 months using NIST-traceable standards. Routine reference/white tile verification before each use. Full spectrometer performance verification annually. Multivariate calibration models should be monitored for drift and recalibrated/updated as needed (per ASTM E1655 model maintenance guidelines).
Q7: Are supporting consumables universal?
A: Light source lamp (tungsten-halogen), cuvettes (quartz for Vis-NIR), sample cups (rotating cups for powders), calibration standards (holmium oxide, NIST-traceable white tile, rare earth glass), desiccant (for detector cooling), filters, sample holders and fuses are available from laboratory suppliers, though lamps and some accessories may be spectrometer-specific. Long-term consumable cost includes lamp replacement (periodic) and calibration standards.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes spectral range (Vis-NIR 325-1100 nm silicon only, 325-1700 nm, 325-2500 nm with InGaAs), resolution (1-10 nm), detector type (silicon, InGaAs, extended InGaAs), sample interface (integrating sphere, fiber optic probe, transmission cell, rotating sample cup, sipper), light source (tungsten-halogen, deuterium-tungsten for UV extension), software (basic spectrum acquisition, quantitative analysis (PLS/PCR), qualitative identification (library search), data export, SDK, 21 CFR Part 11), language and accessories. Additional accessories can be ordered separately.
Q9: Does the purchase include on-site installation and commissioning service?
A: Standard delivery includes the spectrometer, light source, basic sample holder, software and instruction manual. On-site installation, calibration, training and calibration model development are not included for standard orders but can be arranged at additional cost (recommended for quantitative applications requiring custom calibration models). Remote guidance is provided.
Q10: What types of samples are compatible with this equipment?
A: The Vis-NIR spectrometer measures spectra of various samples including solids (powders (grains, flour, soil, chemicals, pharmaceuticals), granules, pellets, tablets, fibers, textiles, paper, coatings, polymers, food products), liquids (solutions, suspensions, emulsions, oils, beverages, chemical solutions), pastes and semi-solids (creams, gels, pastes, butter, cheese), and gases (in gas cells) within the spectral range and sample holder specification. Vis-NIR spectroscopy is particularly suited for rapid, non-destructive analysis of organic compounds (C-H, O-H, N-H bonds produce overtones and combination bands in NIR) including moisture, protein, fat, oil, starch, sugar, fiber, and polymer composition. Different sample types require specific sample presentation (rotating cup for powders to average particle size and inhomogeneity, integrating sphere for diffuse reflectance of opaque solids, transmission cell for clear liquids, fiber probe for in-line/at-line measurement), sample preparation (homogenization, grinding for solids to reduce particle size effects, temperature equilibration (NIR spectra are temperature-sensitive, especially water bands), and calibration model development (requires representative calibration set with reference values, PLS/PCR model development and validation per ASTM E1655).
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