近红外光谱（NIR）和过程分析技术（PAT）

Process analytical technology (PAT), on-line near infrared spectroscopy technology, and the present situations of near infrared spectrometer at home and abroad were introduced in this paper. The development trends and prospects of near infrared spectrometer were also discussed in detail. The standpoint of the importance and urgency to develop process analytical technology in our country was proposed.