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    • 1. 发明授权
    • Humidity and temperature corrections to improve accuracy of HF ambient air monitors based on tunable diode laser IR absorption measurements
    • 湿度和温度校正,以提高基于可调二极管激光IR吸收测量的HF环境空气监测器的精度
    • US08614096B2
    • 2013-12-24
    • US13223756
    • 2011-09-01
    • Manuel S. AlvarezDavid B. Spry
    • Manuel S. AlvarezDavid B. Spry
    • G01N33/00
    • G01N21/39G01N21/3504G01N33/006G01N2021/354G01N2021/3595G01N2021/399
    • Method of determining a total HF concentration metric in an environment including measuring an uncorrected HF concentration metric in the environment based on a first infrared absorption measurement at a wavelength corresponding to a vibrational frequency of a non-hydrogen bonded gas phase HF molecule; determining an ambient H2O concentration metric in the environment available for reaction with the non-hydrogen bonded gas phase HF molecules at or about the time of obtaining the first infrared absorption measurement; calculating a HF hydrate concentration metric in the environment based on the uncorrected HF concentration metric, the ambient H2O concentration metric and a reaction equilibrium relationship between the non-hydrogen bonded gas phase HF molecule and the HF hydrate; and determining the total HF concentration metric in the environment based on the uncorrected HF concentration metric and an amount of HF determined by the HF hydrate concentration metric.
    • 一种确定环境中的总HF浓度度量的方法,包括基于在与非氢键合气相HF分子的振动频率相对应的波长处的第一红外吸收测量来测量环境中未校正的HF浓度度量; 在获得第一红外吸收测量时或之前确定可用于与非氢键合气相HF分子反应的环境中的环境H 2 O浓度度量; 基于未校正的HF浓度度量,环境H 2 O浓度度量和非氢键合气相HF分子与HF水合物之间的反应平衡关系计算环境中的HF水合物浓度度量; 以及基于未校正的HF浓度度量和由HF水合物浓度度量确定的HF的量来确定环境中的总HF浓度度量。