New Possibility for REE Determination in Oil

Table 3

Instrumental parameters for determination of metals by ICP-MS.

Forwarded power	1200 W
Analog stage voltage	−1800 V
Pulse stage voltage	1100 V
Argon consumption
Plasma generating flow	15 L/min
Auxiliary flow	0.8 L/min
Carrier flow	1.4 L/min
Sample consumption	0.5 mL/min
Peak resolution	~0.6 amu
Detector operating modes	Pulse count and analog
Speed of peristaltic pump	24 rpm
Spray chamber	Cooling (4°C) quartz
Mass range	27–238 amu
Sweeps/reading	40
Replicates	3
Dwell time	50 ms
Scan mode	Peak hopping
Abundance sensitivity
Low mass	<5·10^−7
High mass	<1·10^−7