Bridging the Automation Gap Between Sample Preparation and Analysis: An Overview of SFE, GC, GC-MS, and HPLC Applied to Environmental Samples

Chromatography, Absorption, and Fluorescence: A New Instrumental Analysis Experiment on the Measurement of Polycyclic Aromatic Hydrocarbons in Cigarette Smoke

“…It should be noted that while this laboratory focused on the application of HPLC to the detection and measurement of PAH, other techniques, such as GC-MS, could also be applied to the extract (13,17,(19)(20)(21)(22). Gaseous emissions from cigarettes, such as HCHO, can also be analyzed by GC and HPLC (23).…”

Off-Line SFE-MEKC Determination of Diuron in Sugar Cane and Orange Samples

“…Recent studies demonstrated that supercritical fluids (SF) provide a powerful alternative in sample preparation [3]. The main advantage of a supercritical fluid over an extracting liquid is that its properties can all be controlled by varying the applied pressure and temperature.…”

“…This leads to greater selectivity, rapid mass transfer, and higher flow-rates as compared with liquids. SFE also has considerable advantages over liquid extraction in terms of sample size, cost, volume of solvent, and analysis times [3,4].…”

Selected applications of the use of supercritical fluids in coupled systems

“…Whereas the process of extraction by supercritical fluids has been known for some time [1], e.g., the selective removal of caffeine from coffee, supercritical fluid extraction (SFE) has only recently been applied on an analytical scale, analysts rediscovering the technique as a powerful sample preparation tool for off-line and online combination with chromatographic techniques [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The most important characteristics of SFE are the high recovery rates attainable with relatively short extraction times (typically 30 min) and the high degree of selectivity that can be introduced into the sample preparation step [16].…”