Some Rare Earth Elements Analysis by Microwave Plasma Torch Coupled with the Linear Ion Trap Mass Spectrometry

Table 2

Quantitative indexes summarized of MPT-MS² method for REEs in pure water and analysis results for some real samples.

REEs	Linear equation		Linear range (ng/mL)	LOD (ng/mL)	RSD (, %)	Recovery rate	Well water (ng/mL)	Orange juice (ng/mL)
Y		0.999	1–100	0.574	3–11	103.4	31.41	135.45
La		0.998	1–250	0.2	7.8–14.1	117.3	0.759	20.33
Ce		0.998	1–250	0.29	6.3–9.4	122.1	1.365	3
Pr		0.999	1–100	0.04	2.4–10.1	100.5	0.47	0.77
Nd		0.998	1–250	0.114	3.6–14.7	113.7	6.38	1.94
Sm		0.998	1–500	0.388	9.4–21.2	109.7	0.98	396.27
Eu		0.999	1–250	0.369	3–8.1	97.6	—	0.725

7.5 ng/mL.
5 ng/mL.