HOLMARC BioLAB series UV-Vis spectrophotometer is a high-performance, reliable, and exceptional value instrument. Unlike other entry level spectrophotometers, it employs classic Czerny – Turner monochromator design, normally available only with advanced models, which ensures low stray light. Micro-stepping drive simplifies the mechanical complexity, reduces maintenance and improves longevity. 1200 lines/mm blazed holographic grating is used as the dispersion element providing high wavelength resolution. It also employs a sigma delta ADC of 16 bit resolution for photometric measurements, a resolution higher than most of the spectrophotometers available in this price range. Large LCD and friendly interface make the operation extremely easy. It is used to plot absorbance v/s wavelength graph. The data can then be analyzed for peaks and valleys. These models also feature PC control functions based on Holmarc ‘s Spectra PhotoANALYTE software which allows users for photometric measurements, spectrum scanning, quantitative determination,data processing etc.
Photometric mode measures the absorbance or transmittance at a single wavelength or at multiple wavelengths. Spectrum mode obtains sample spectra using wavelength scanning. Changes in the sample can be tracked using repeated scans. Quantitation mode generates a calibration curve from standard samples and uses it to calculate the concentrations of unknown samples. Kinetics mode measures the change in absorbance as a function of time and thereby obtains enzymatic activity values. Time scan mode measures the change in absorbance, transmittance or energy as a function of time.
Large LCD and friendly interface make the operation extremely easy.
Precise measurements over a wide photometric range.
Step scan function provides reliable peak assignment of samples with sharp or narrow absorption peaks.
User-friendly graphical interfaces.
Excellent signal-to-noise ratio for the entire UV to NIR spectral range.
Powerful Software designed for Photometry
Powerful data processing abilities
|Model||BioLAB VIS 300|
|Optical System||C-T monochromator, 1200 l/mm holographic grating|
|Wavelength Range||350 ~ 1100 nm|
|Photometric Method||Transmittance, Absorbance, Concentration|
|Wavelength Accuracy||± 0.8 nm|
|Wavelength Repeatability||± 0.2 nm|
|Absorbance Range||-2 ~ 2Abs|
|Photometric Accuracy||± 0.002A (0 ~ 0.5A), ± 0.004A (0.5 ~ 1A), ± 0.3% T|
|Photometric Repeatability||≤ 0.001A (0 ~ 0.5A), ≤ 0.002A (0.5 ~ 1A), ± 0.1% T|
|Stray Light||≤ 0.05% T|
|Baseline Straightness||± 0.002A|
|Detector||Si – Photodiode|
|Light Source||Quartz Halogen Lamp|
|Cell Holder||Two-position 10 mm standard cuvette holder|
|Display||320 × 240 pixel graphic LCD|
|Control Mode||Stand alone or PC control|
|Dimensions (L x W x H) mm||310 x 235 x 108|
Scanning range between 350 – 1100nm
Selectable scan Wavelength Interval of 1 to 50nm
Live absorbance plot during scanning
Plot browser to read absorbance values at each wavelength
Analyzer to find out absorbance and wavelength of peaks and valleys
Custom Glass Cuvettes
We manufacture quartz cells and cuvettes of custom specifications for spectrometer, spectrophotometer, colorimeter and other instruments.
The cuvette holder unit is manufactured for various cuvette sizes and applications. Some cuvette holders are equipped with SMA fiber connector sand collimators.
A variety of accessories are included such as test tube holder, temperature control holder, long path length cuvette holder & multiple cell holder to enhance different application needs.