Corona Ultra检测结果与分析物颗粒有关，信号电流与样品中分析物的质量成正比，因此无论何种化合物，只要进样质量相同响应都基本一致，所以Corona Ultra检测器能检测所有非挥发物，包括不含发色团的物质，不论被测物分子结构如何。 工作原理：步骤一 ...

The advertisement begins with the familiar strains of “The Star-Spangled Banner,” played on an electric guitar, as a glass bottle of Michelob Ultra – dripping in condensation on the outside ...

Labatt has been making beer in Canada with more than 70 brands produced at six locations across the country. With 3,500 ...