. 2021 Aug 25;6(35):22717–22725. doi: 10.1021/acsomega.1c03013

Table 1. List of CRMs Used for Calibration of the GDMS Instrument.

		CRMs and QC used
analyte	# of CRMs, QC samples	CN	coal
Al	3	NRC SWCNT-1⁴⁴	NIST SRM 1632d, NIST SRM 1632a
As	3		NIST SRM 1632d, NIST SRM 1632a, BCR 038
B	2	NRC SWCNT-1⁴⁴	NIST SRM 1632d
Ba	1		NIST SRM 1632d
Ca	4	NRC SWCNT-1⁴⁴	NIST SRM 1632d, NIST SRM 1632a, ERM-EF412
Cd	1		NIST SRM 1632a
Ce	2		NIST SRM 1632d, NIST SRM 1632a
Cl	2		NIST SRM 1632d, BCR 038
Co	4	NRC SWCNT-1⁴⁴	NIST SRM 1632d, NIST SRM 1632a, BCR 038
Cu	4		NIST SRM 1632d, NIST SRM 1632a, BCR 038, ERM-EF412
Cr	4	NRC SWCNT-1⁴⁴	NIST SRM 1632d, NIST SRM 1632a, BCR 038
Cs	2		NIST SRM 1632d, NIST SRM 1632a
Dy	1		NIST SRM 1632d
Eu	2		NIST SRM 1632d, NIST SRM 1632a
F	2		BCR 038, ERM-EF412
Fe	4	NRC SWCNT-1⁴⁴	NIST SRM 1632d, NIST SRM 1632a, BCR 038
Ga	1		NIST SRM 1632a
Hf	2		NIST SRM 1632d, NIST SRM 1632a
K	3	NRC SWCNT-1⁴⁴	NIST SRM 1632d, BCR 038
La	2	NRC SWCNT-1⁴⁴	NIST SRM 1632d
Mg	3		NIST SRM 1632d, NIST SRM 1632a, ERM-EF412
Mn	4	NRC SWCNT-1⁴⁴	NIST SRM 1632d, NIST SRM 1632a, BCR 038
Mo	1	NRC SWCNT-1⁴⁴
N	2		NIST SRM1632d, ERM-EF412
Na	5	NRC SWCNT-1⁴⁴	NIST SRM 1632d, NIST SRM 1632a, BCR 038, ERM-EF412
Ni	5	NRC SWCNT-1⁴⁴, in-house QC-1^a	NIST SRM 1632d, NIST SRM 1632a, BCR 038
Pb	5	NRC SWCNT-1⁴⁴	NIST SRM 1632d, NIST SRM 1632a, BCR 038, ERM-EF412
Rb	1		NIST SRM 1632a
S	3		NIST SRM 1632d, NIST SRM 1632a, ERM-EF412
Sb	3		NIST SRM 1632d, NIST SRM 1632a, ERM-EF412
Sc	2		NIST SRM 1632d, NIST SRM 1632a
Se	1		NIST SRM 1632d
Si	1		NIST SRM 1632d
Sm	1		NIST SRM 1632d
Sr	1		NIST SRM 163da
Ti	3	NRC SWCNT-1⁴⁴	NIST SRM 1632d, NIST SRM 1632a
Th	3		NIST SRM 1632d, NIST SRM 1632a, BCR 038
U	2		NIST SRM 1632d, NIST SRM 1632a
V	5	NRC SWCNT-1⁴⁴	NIST SRM 1632d, NIST SRM 1632a, BCR 038, ERM-EF412
Y	1	in-house QC-1^a
Zn	4		NIST SRM 1632d, NIST SRM 1632a, BCR 038, ERM-EF412