Which of the following statements about Fourier-transform infrared spectroscopy (FTIR) are correct?
(i) FTIR is used to obtain an infrared spectrum of absorption or emission of a sample.
(ii) FTIR spectrometer collects high-spectral-resolution data over a narrow spectral range.
(iii) FTIR has advantages over dispersive spectrometers.
(iv) FTIR can be used for analyzing solid, liquid, or gas samples.
1
(i) and (ii) only
2
(i), (iii), and (iv) only
3
(ii), (iii), and (iv) only
4
(i), (ii), and (iv) only