According to the "sick quitter" hypothesis, some abstainers who quit drinking due to illness may have pre-existing disease that could explain their higher risk relative to moderate drinkers.
A method of determining trace bromate in drinking water by an ion chromatograph was established with direct injection and conductivity detection but without sample pre-treatment.
建立了一种无需样品前处理、直接进样、电导检测饮用水中痕量溴酸盐的离子色谱分析方法。
3
The present invention provides an instant heating drinking machine which can provide needed drinking hot water instantly and needs not pre-store hot water in machine.