These methods include high performance liquid chromatography (HPLC) [3 8].
Attractive features of these methods include high sensitivity to damage and instant determination of the damage location.
The advantages of laser engraving over traditional methods include: High working speed without mechanical contact No wear and tear of components Reduced waste Complete exhaust and filtering Exact contours possible.
Oxygen storage methods include high pressure oxygen tanks, cryogenics and chemical compounds.
However, disadvantages of these methods include high spontaneous release of the fluorescent dye, low intensity of the fluorescence signal, and the requirement of expensive and sophisticated equipments such as flow cytometry.
These methods include high-performance thin-layer chromatography [3], liquid chromatography [3 9], and capillary zone electrophoresis [10].
Such methods include high-energy milling, mechano-chemical processing, electro-explosion, laser ablation, sputtering, and vapor condensation.
These methods include high-performance liquid chromatography (HPLC), ultraviolet spectrophotometry (UV) and reversed phase liquid chromatography/quadrupole time-of-flight tandem mass spectrometry (RPLC-Q-TOF/MS) [10 12].
These methods include high-performance liquid chromatography [4, 5], liquid chromatography coupled with mass spectrometry [6 8], high performance thin layer chromatography [9], Spectrofluorimetry [10], spectrophotometry [11] and capillary zone electrophoresis [12].
The most commonly used chromatographic separation methods include high-performance liquid chromatography (HPLC) [9, 10], gas chromatography (GC) [11], liquid chromatography-tandem mass spectrometry (LC/MS) [12], gas chromatography-tandem mass spectrometry (GC-MS/MS) [13, 14], capillary electrophoresis (CE) [15 18], and enzyme-linked immunosorbent assay (ELISA) [2, 3, 19].
The methods include high-performance liquid chromatography with ultraviolet detection (HPLC UV), ultra-performance liquid chromatography coupled to time-of-flight mass spectrometry (UPLC/TOF MS), and liquid chromatography tandem mass spectrometry (LC MS/MS).
