In presented work, the hexane/ethanol extraction was combined with spectrophotometry
and HPLC to improve the reliability of b-carotene quantitative determination.
The results showed the proposed spectrophotometry
technique surpasses the methylene blue clay test in a Gage R&R measurement system analysis.
Five of these 6 neonates had TSB levels more than 20 mg/dl by direct spectrophotometry
(capillary sample) and diazo method (clot sample), and one of them had a TSB level of 18.
Cadmium integration in four axolotl tissues (skin [taken from the head], brain, liver and tail) was tested using graphite furnace atomic absorption spectrophotometry
The most commonly used methods to monitor dyes during the dyeing process are spectrophotometry
and voltammetry (BERGAMINI et al.
Total lycopene and isomers were measured by spectrophotometry
and high-performance liquid chromatography, respectively.
For precision cooling in spectrophotometry
and refractometry, the Optima circulators can be combined with refrigeration units (5, 12 and 20 litre) to provide a range of 18 models.
The high-quality ultra-pure water produced by the system is suitable for critical applications such as chromatography work, the preparation of blanks and standard solutions in spectrophotometry
, spectroscopy and other analytical techniques, as well as the preparation of buffers for biochemical experiments.
The company adds: "Expansion at the European headquarters in Knowsley follows a $250,000 investment at the Suzhou site in China, to upgrade laboratory facilities and better serve local customers, with new gas barrier testing and UV spectrophotometry
Her research experience at Virginia Tech emphasized the use of food analytical and flavor chemistries including spectrophotometry
, enzymatic reactions, electronic nose, SPME GC-MS, GC-O and discrimination and quantitative descriptive sensory analysis.
UV-Visible (UV-Vis) spectrophotometry
has been established as a powerful analytical technology capable of addressing at-line and in-line challenges facing these industries, while eliminating the risks of sample analysis.
An alternative is to carry out drug estimations by spectrophotometry
which is relatively cheap and simple.
Among these techniques, visible absorption spectrophotometry
represents the most convenient technique because of the availability of the instrumentation, simplicity, speed, precision, accuracy and low cost.
The validity of CO-oximetry for COHb measurement in postmortem samples has been examined by comparing CO-oximetry with UV spectrophotometry
Small fragments of the surface colorant were analyzed using a variety of techniques, including microscopy, energy dispersive microwave analysis and infrared spectrophotometry