Analytical & Measureing Instruments
Colour is one of the most important parameters to analyse wine quality. The presence of anthocyanin pigment is responsible for the richness of colour in red wine. The change in the structure of anthocyanin is generally attributed towards the apparent change in colour in red wines. White wines and rose wines also go through colour…
In this experiment, Rapid BCA protein quantification analysis was performed using the automated [Workflow] function of the K LAB MRX A2000 Microplate Reader. BSA standard solutions measured within the 0.125–5.000 mg/mL concentration range exhibited excellent linearity with R² ≥ 0.999 based on a second-order polynomial calibration curve. The %RE based on back-calculated concentrations satisfied accuracy…
This experiment introduces a micro-volume protein quantification solution using the POP UV-Vis Spectrophotometer from K LAB equipped with a Microvolume Cell Holder, enabling the use of as little as 10 μL of protein sample for the Pierce™ 660 nm Protein Assay.
Ammonia Nitrogen (NH₃-N) is a crucial parameter in water quality management and wastewater treatment, regularly measured in laboratories, wastewater treatment plants, food and beverage manufacturing, and water treatment facilities. This analysis is essential for complying with environmental regulations and monitoring nitrogen concentration in process.
Beer is one of the most popular alcoholic beverages and has produced a large-scale industry worldwide. Beers have an expansive range of variety which resulted the requirement of quality control to ensure safety, authenticity, and distinct flavours as claimed by different manufacturers. Although sensory evaluation is an age old and essential technique in this regard,…
This study verified the photometric linearity to evaluate the optical performance of the Alpha UV-Vis Spectrophotometer developed by KLAB (hereinafter referred to as the instrument). This experiment was not intended for the quantitative analysis of a specific sample, but rather to confirm how accurately the instrument’s photometric response follows the Beer–Lambert law as the concentration…
This technical note provides a detailed procedure for protein quantification analysis using the MRXA2000 microplate reader and the Bradford Assay. The MRXA2000 is typically integrated effectively with both 96-well and 384-well plates, allowing for the simultaneous analysis of a large number of samples. When conducting the Bradford Assay experiment with the MRXA2000, a single measurement…
The user can change the Peak/Valley detection condition by changing the number of scanning data points, N. If no Peak/Valley is detected within the desired range, it can be solved by adjusting N simply. The tendency to continuously increase (or decrease) can be broken if the scanning interval is too small the difference between two…
This technical note demonstrates the protein analysis performance of the microvolume spectrophotometers in the NanoQ series (NanoQ Plus, NanoQ) for bio-related protein experiments. This assesses the accuracy, linearity, and precision of measurements in the BSA measurement mode of the Protein UV tab on the NanoQ system. The performance equivalence was demonstrated based on comparative data…
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