方法：调节溶剂种类、温度范围和测试浓度，考察线性关系、精密度和回收率。

Methods: Adjusting the kind of solvent, changing the range of testing temperature and concentration, examining linear relation, precision and percent recovery.

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基于质子交换膜燃料电池电堆的能量守恒，建立了在大范围的负载扰动下电池电堆温度的非线性模型。

Based on the energy conversation of proton exchange membrane fuel cell (PEMFC) stack, the nonlinear temperature model of PEMFC stack with the large range of disturbances is developed.

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讨论了不同的石英管预加热温度对分析灵敏度、线性范围和记忆效应等因素的影响以及有关氢化物原子化机理。

The effects of pre_heating temperature on sensitivity, linear range, memory effect and the mechanism of hydride formation are also discussed.

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