This Standard Reference Material (SRM) is intended for use in evaluating analytical methods for the determination of selected polychlorinated biphenyl (PCB) congeners, chlorinated pesticides, and polybrominated diphenyl ether (PBDE) congeners in human milk and similar matrices. Reference concentration values are provided for polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), as well as some inorganic constituents. An information concentration value is provided for the PCB mixture Aroclor 1260. All of the constituents for which certified, reference, and information concentration values are provided in NIST-1953 are naturally present in the milk. A unit of NIST-1953 consists of five bottles of approximately 5 mL of frozen non-fortified human milk. Indicative values fo PCBs, PBDEs, selected elements, Dibenzo-p-Dioxin and Dibenzofuran congeners and for Aroclor 1260. /// Sample value(s) - please ask for current certificate.
Contents
Analyte
CAS Number
Concentration
Unit
Additional information
Method
2,4,4'-Trichlorobiphenyl (PCB 28)
[7012-37-5]
63,1 ± 1,5
ng/kg
2,3',4,4'-Tetrachlorobiphenyl (PCB 66)
[32598-10-0]
32,8 ± 0,9
ng/kg
2,4,4',5-Tetrachlorobiphenyl (PCB 74)
[32690-93-0]
149 ± 2
ng/kg
2,2',4,4',5-Pentachlorobiphenyl (PCB 99)
[38380-01-7]
138 ± 4
ng/kg
2,3,3',4,4'-Pentachlorobiphenyl (PCB 105)
[32598-14-4]
45,7 ± 4,5
ng/kg
2,3,3',4',6-Pentachlorobiphenyl (PCB 110)
[38380-03-9]
12,4 ± 0,6
ng/kg
2,3',4,4',5-Pentachlorobiphenyl (PCB 118)
[31508-00-6]
213 ± 3
ng/kg
2,2',3,4,4',5'-Hexachlorobiphenyl (PCB 138)
[35065-28-2]
317 ± 28
ng/kg
2,2',3,4',5,5'-Hexachlorobiphenyl (PCB 146)
[51908-16-8]
55,6 ± 0,5
ng/kg
2,2',4,4',5,5'-Hexachlorobiphenyl (PCB 153)
[35065-27-1]
480 ± 11
ng/kg
2,3,3',4,4',5-Hexachlorobiphenyl (PCB 156)
[38380-08-4]
59,7 ± 2,6
ng/kg
2,3,3',4,4',5'-Hexachlorobiphenyl (PCB 157)
[69782-90-7]
14,6 ± 0,6
ng/kg
2,3',4,4',5,5'-Hexachlorobiphenyl (PCB 167)
[52663-72-6]
15,8 ± 2,1
ng/kg
2,2',3,3',4,5,5'-Heptachlorobiphenyl (PCB 172)
[52663-74-8]
14,8 ± 0,6
ng/kg
2,2',3,3',4',5,6-Heptachlorobiphenyl (PCB 177)
[52663-70-4]
24,5 ± 2,8
ng/kg
2,2',3,3',5,5',6-Heptachlorobiphenyl (PCB 178)
[52663-67-9]
22,2 ± 0,6
ng/kg
2,2',3,4,4',5,5'-Heptachlorobiphenyl (PCB 180)
[35065-29-3]
236 ± 17
ng/kg
2,2',4,4'-Tetrabromodiphenyl ether (PBDE 47)
[5436-43-1]
2200 ± 110
ng/kg
2,2',4,4',5-Pentabromodiphenyl ether (PBDE 99)
[60348-60-9]
342 ± 4
ng/kg
2,2',4,4',6-Pentabromodiphenyl ether (PBDE 100)
[189084-64-8]
839 ± 66
ng/kg
2,2',4,4',5,5'-Hexabromodiphenyl ether (PBDE 153)
[68631-49-2]
984 ± 76
ng/kg
2,2',4,4',5,6'-Hexabromodiphenyl ether (PBDE 154)
[207122-15-4]
42,8 ± 3,6
ng/kg
2,2',4,4',5,5'-Hexabromobiphenyl (PBB 153)
[59080-40-9]
36,6 ± 1,3
ng/kg
Hexachlorobenzene
[118-74-1]
261 ± 26
ng/kg
beta-HCH
[319-85-7]
610 ± 17
ng/kg
Oxychlordane
[27304-13-8]
612 ± 59
ng/kg
cis-Nonachlor
[5103-73-1]
126 ± 5
ng/kg
trans-Nonachlor
[39765-80-5]
1240 ± 90
ng/kg
4,4'-DDE
[72-55-9]
7430 ± 360
ng/kg
4,4'-DDT
[50-29-3]
229 ± 17
ng/kg
Miscellaneous
Certificate of Analysis (specimen)
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