Stable Isotope Ratio and Elemental Profile Combined with Support Vector Machine for Provenance Discrimination of Oolong Tea (Wuyi-Rock Tea)

Table 3

Main measurement parameters for Ca, Mg, and Mn.

Element	Wavelength	Bandpass	Ethyne gas flow rate	Air flow rate
Ca	422.7 nm	2.6 nm	2.6 L/min	9.4 L/min
Mg	285.2 nm	2.6 nm	2 L/min	9.4 L/min
Mn	279.5 nm	2.3 nm	2.3 L/min	9.4 L/min