Monitoring heavy metals, residual agricultural chemicals and sulfites in traditional herbal decoctions

Table 2 Mercury analyzer operating conditions

Parameter	Condition
Mode selector	Standard: 1, Sample : 2
Heating mode	Two available modes
Gas washing bottle	Buffer: H₂O = 1:1(v/v)
Flow meter	0.5 L/min
Sample heating furnace H1	Mode 1 : 600 °C(2 min), Mode 2 : 800 °C(4 min)
Decomposing furnace H2	Heated at 850 °C
Mercury collector H3	About Heated at 700 °C
Carrier gas	Purified dry air
Additive	Standard: unnecessary, Sample: B + S + B + M^a

^aM: Sodium carbonate anhydrous: Calcium hydroxide = 1: 1 (v/v); B: Aluminum oxide anhydrous; S: Sample

ISSN: 2662-7671