Table 1 Operating parameters of the ICP-MS system.

From: Occurrence, exposure and health risk assessment of heavy metals in green tea samples cultivated in Hangzhou area

Mode

Collision

Mode

Collision

RF power (kW)

1.55

Sampling depth (mm)

10.0

Auxiliary flow (L/min)

0.80

First extraction lens (V)

−2.0

Nebulizer flow (L/min)

0.95

Second extraction lens (V)

−165.0

CeO+/Ce+ (%)

1.2

Ba++/Ba+ (%)

1.1

Collision gas

He

He flow (mL/min)

4.0

  1. Monitored isotopes 7Li, 27Al, 51V, 52Cr, 55Mn, 60Ni, 63Cu, 75As, 78Se, 111Cd, 118Sn, 121Sb, 137Ba, 202Hg, 206,207,208Pb
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