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（本小题满分13分） 如图，设抛物线 的准线与 轴交于 ，焦点为 ；以 为焦点，离心率 的椭圆 与抛物线 在 轴上方的交点为 ，延长 交抛物线于点 ， 是抛物线 上一动点，且 M 在 与 之间运动. （1）当 时，求椭圆 的方程； （2）当 的边长恰好是三个连续的自然数时，求 面积的最大值．
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药材、饮片及制剂中部分农药残留量的检测
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中药材中二氧化硫含量测定
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酊剂（如藿香正气水、十滴水等）中甲醇、乙醇含量测定
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药品中有机溶剂残留量检测
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