The freshwater and seawater pearl samples with different colours are investigated by using Fourier transform infrared (FTIR) spectrometer and graphite furnace atomic absorption spectrometer (GFAAS).
采用傅里叶变换红外吸收光谱仪和石墨炉原子吸收光谱仪对不同颜色的淡水、海水珍珠样品进行了对比研究。
2
The interface width increased slightly after infrared annealing but strongly after furnace annealing.
红外退火后界面宽度略有增加，但炉退火使界面宽度有显著增加。
3
The black body furnace can be used as standard device of intercomparison in the lab and on site calibration of infrared temperature instrument.