Arsenic Bioaccessibility of Realgar Influenced by the Other Traditional Chinese Medicines in Niuhuang Jiedu Tablet and the Roles of Gut Microbiota

Table 2

ICP-MS operating parameters.

Parameter	Value
RF power	1350 W
RF matching	1.7 V
Sampling depth	7.0 mm
Spray chamber	Quartz cooled to 2.0°C
Peristaltic pump speed	6 rpm
Carrier gas	0.96 L/min
Makeup gas	—
Interface cones	Ni
Acquisition mode	Spectrum analysis
Number of points per mass	3
Integration time per point	0.1 s
Number of repetition	3
Monitored elements for calculations	^75As and ^72Ge
Uptake speed	12 rpm
Uptake time	45 s
Stabilization speed	6 rpm
Stabilization time	65 s