What is the difference between HPLC and UV test for standardized extracts
HPLC
It is the method that is most frequently used to identify, measure, and separate mixture components. The contents of pharmaceutical actives, medication products, insecticides, and numerous other chemicals can be analyze using HPLC.
UV
Repaglinide in tablet dosage form was determine using UV spectrophotometric and reversed-phase high-performance liquid chromatography (RP-HPLC) techniques.
The findings show that HPLC and UV spectrometry technologies can accurately measure repaglinide in its pure form and dose form.
Lets look on difference between both
HPLC ✅ | UV ✅ |
The HPLC approach is more accurate and exact than the UV method, according to statistical comparison of the quantitative determination of repaglinide. | The suggested UV approach has an advantage over the HPLC method in that it does not require the complicated processing and processes typically associated with chromatographic methods. |
The procedure yields excellent resolution and takes between 10 and 30 minutes to complete. It is precise and incredibly reproducible. | It takes less time and is more cost-effective. |
Molecules can be separated according to their size, surface charge, and other characteristics using a process called high-performance liquid chromatography (HPLC). | The concentration of molecules can be evaluated after separation due to the inclusion of ultraviolet (UV) spectroscopy with HPLC. |
If you already have a standard for the analyte you wish to examine, HPLC is preferable. | UV-Vis is less trustworthy than HPLC in that other substances may interfere with the analyte’s ability to absorb the sample. |
For both, a standard curve must be created. | For both, a standard curve must be created. |
Peak area is the response in HPLC. | It is a matter of absorbance at a wavelength to detect UV. |
Additionally, it’s critical to keep in mind that HPLC is a more expensive approach, requiring more expensive hardware, reagents, and consumables than UV-Vis spectroscopy. | Less expensive than HPLC. |
Complicated system
- Because HPLC systems are more complicated, have more moving components, and have more failure sites, they require technicians with more experience and equipment operating knowledge. To obtain acceptable separations and peak shapes, experience is also require in the choice and application of mobile phases and columns. (Anyone can learn; but, there is always more to learn.)
- Additionally, if you need to take a field measurement, UV-Vis is far more portable than an HPLC.
- With UV-Vis, measurement data are available immediately, however, with HPLC, you must wait for an injection to complete running. A UV-Vis also makes it simpler to perform kinetic measurements.
- HPLC and UV-Vis are sometimes use in conjunction to validate an experiment.
Comparison Example
Material & method
Repaglinide was determine using the UV spectrum measured between 200 and 400 nm using methanol as the solvent and a wavelength of 241 nm. Utilizing an Agilent TC-C18 (2) column and a mobile phase of methanol and water (80:20 v/v, pH adjusted to 3.5 with orthophosphoric acid) at a flow rate of 1.0 ml/min, RP-HPLC analysis was perform. According to the International Conference on Harmonization (ICH) recommendations, parameters like linearity, precision, accuracy, recovery, specificity, and ruggedness are investigate.
What results we had
For UV spectrophotometric and HPLC techniques, respectively, the developed methods demonstrated high linearity (r2 > 0.999) in the concentration range of 5-30 g/ml and 5-50 g/ml. The accuracy of the procedures is demonstrate by their precision (percent R.S.D. 1.50) and mean recoveries, which were determine to be 99.63–100.45 percent for the UV spectrophotometric method and 99.71–100.25 percent for the HPLC method.
Conclusion
For the quality control of repaglinide as a bulk drug and in pharmaceutical formulations, the establish procedures were found to be effective, dependable, easy to use, quick, and accurate.
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