GC×GC-TOFMS is an excellent tool for characterizing a whisky sample, but the incredible resolving power and sensitivity of the Pegasus BT 4D applied to such a complex matrix can result in huge insights. But what if you have the data interpretation challenge of multiple samples? This is where an analysis tool such as ChromaTOF Tile drastically cuts data analysis times. Take, for example, the following five whiskies.
Three samples of each whisky were run through a Pegasus BT 4D and then analyzed with ChromaTOF Tile. By using tile-based Fisher-ratios, ChromaTOF Tile is able to intelligently sift through the data, identifying compounds of interest and creating heatmaps showing class averages for each set even before compounds are identified. This opens the door for new analytes of interest to be discovered and explored.
Compounds can be further analysed and identified using the "Chemical Features" pane, displaying identifications, similarity scores, and data from all of the samples grouped by set.
In addition, statistical analysis such as PCA plots quickly show the strong differentiation between the different whiskies.
These comparisons can be analysed on a granular level. For example, out of our five whiskeys, Laphroaig is known for its smoky flavour with a surprising sweetness. The ChromaTOF Tile analysis showed that Pyridine, 2,3-dimethyl-, characterised as "coffee" and "caramellic," has a strong presence in the Laphroaig samples (below, purple) but isn't very strong in the other four types of whiskey. This difference is easily highlighted by the software and identified for further analysis.
With ChromaTOF Tile and the Pegasus BT 4D, this level of detail is available for the entire mass range of a sample, not just a few compounds, and the results can be available in minutes, not days. Let ChromaTOF Tile turn your data into chemistry and see what you've been missing. Explore a free, 90-day trial today!