Determination of 16 Selected Trace Elements in Children Plasma from China Economical Developed Rural Areas Using High Resolution Magnetic Sector Inductively Coupled Mass Spectrometry

Table 1

16 selected isotopes, linear working ranges and equations, correlation coefficient (𝑅²), and limits of quantitation (LOQ) considering the dilution factor (dilution factor = 20).

Isotope	Ranges; (µg/L)	Linear equation; (conc = 𝑎  * signal + 𝑏)	𝑅^2	LOQ (μg/L, 𝑛=20)
^11B	0–10	𝑦=1.425𝑒^−004𝑥−2.770𝑒^−003	0.9997	0.38
^85Rb	0–100	𝑦=9.255𝑒^−001𝑥+6.444𝑒^−002	0.9998	0.02
^88Sr	0–10	𝑦=1.113𝑒^−004𝑥+3.690𝑒^−002	0.9996	0.06
^95Mo	0-1	𝑦=1.871𝑒^−004𝑥+1.780𝑒^−004	0.9989	0.03
^111Cd	0-1	𝑦=1.449𝑒^−004𝑥−4.019𝑒^−005	0.9979	0.03
^208Pb	0-1	𝑦=1.056𝑒^−003𝑥+2.229𝑒^−003	0.9989	0.17
^27Al	0–2	𝑦=9.164𝑒^−004𝑥+1.492𝑒^−001	0.9957	0.24
^51V	0-1	𝑦=1.560𝑒^−003𝑥+1.059𝑒^−003	0.9989	0.06
^52Cr	0-1	𝑦=1.289𝑒^−003𝑥−6.643𝑒^−003	0.9992	0.09
^55Mn	0-1	𝑦=1.807𝑒^−003𝑥−4.863𝑒^−003	0.9998	0.12
^56Fe	0–100	𝑦=1.592𝑒^+000𝑥+6.966𝑒^−001	0.9999	0.25
^59Co	0-1	𝑦=1.586𝑒^−003𝑥−7.618𝑒^−004	0.9995	0.06
^63Cu	0–100	𝑦=9.054𝑒^−001𝑥−2.449𝑒^−001	0.9999	0.48
^66Zn	0–100	𝑦=2.325𝑒^−001𝑥+8.411𝑒^−001	0.9996	0.45
^75As	0-1	𝑦=2.041𝑒^−004𝑥−4.325𝑒^−004	0.9969	0.56
^77Se	0–10	𝑦=2.396𝑒^−005𝑥−9.134𝑒^−004	0.9973	1.89