The two main chromatographic techniques used in modern analytical chemistry are Gas. Chromatography (GC) and High Performance Liquid Chromatography (HPLC). HPLC uses a liquid mobile phase to transport the analytes (sample) through the column, which is packed with a stationary phase material. In contrast, Gas Chromatography uses a gaseous mobile phase to transport sample. components through either packed columns or hollow capillary columns.
Best Retail and Gas Credit Card: Walmart Credit Card. Walmartâs credit cards are some of the easiest credit cards to qualify for with bad credit. The store has two types of cards, the Walmart MasterCard and the Walmart Credit Card. Both cards offer up to 3% discounts on Walmart purchases, $0 fraud liability, no annual fee, and free monthly access to your FICO score.
At the top of each broad category is our easy choiceâthe best no-muss, no-fuss, no-annual-fee option. That's because while the benefits can be rich, maximizing rates and rewards is a lot of workâand not for everyone. These are MONEY's picks: Best Credit Cards for Cash Back. Best Credit Cards for Carrying a Balance.