Method Transfer Evaluation for Digital Derivative Spectrophotometry Through its Resolution Parameter Comparison of Different Computer Programs
| Autor: | Natasa Bogavac-Stanojevic, Katarina Karljikovic-Rajic, Sote Vladimirov, Bojan Marković, Ana Homšek |
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| Rok vydání: | 2020 |
| Předmět: |
amplitude A/B ratio–resolution parameter
Materials science medicine.diagnostic_test 010401 analytical chemistry method transfer program algorithms evaluation Analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Digital derivative spectra EP Spectrophotometry European Pharmacopoeia medicine equivalence tests 0210 nano-technology Instrumentation Equivalence (measure theory) Spectroscopy Derivative spectroscopy |
| Zdroj: | Applied Spectroscopy |
| ISSN: | 1943-3530 |
| Popis: | The application assessment of different programs was performed with equivalence tests for method transfer pro second-order derivative spectrophotometry. The digital second-order derivative spectra were calculated on different instruments; GBC Scientific Equipment Cintra 20 (Cintral v.2.6 and Spectral v.1.70 software programs) and Thermo Scientific Evolution 300 (VISIONPro software) were analyzed using the amplitude A/B ratio (A = 2D265,263; B = 2D263,261). Amplitude A/B ratio is the resolution parameter for derivative spectrophotometry prescribed in European Pharmacopoeia. The obtained values for A/B ratio were either very similar or significantly different among programs: 0.669 (Cintral v.2.6), 0.549 (Spectral v.1.70), 0.556 (medium indirect VISIONPro), 0.557 (one-step Savitzky–Golay 7 VISIONPro), 0.689 (two-step Savitzky–Golay 7 VISIONPro). Method transfer was possible between Spectral v.1.70 and VISIONPro (medium indirect and one-step Savitzky–Golay 7), but the values obtained in Cintral v.2.6 were not comparable to the other programs. The absorbance data exported from both instruments were additionally calculated in OriginPro8 which provided almost the same mean A/B values (0.627 Cintral v.2.6; 0.624 VISIONPro), confirming that the two instruments recorded the same zero-order spectra. The calculation of resolution parameter could be used for verification of program comparison, which would enable transfer between sender and receiver laboratory. The accordance between program algorithms was confirmed when acceptable differences for values of resolution parameter (A/B ratios) were achieved. |
| Databáze: | OpenAIRE |
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