These CRMs were produced and certified from naturally contaminated matrices and have not been fortified or modified in any way. Analytical data for Certification was obtained using USEPA SW846, 3rd edition methods 3050 (hot block) and 3051 (microwave) using nitric acid extraction. Analysis was carried out according to USEPA methods 6010 (ICP-EOS), 6020 (ICP-MS) and 7000 (AES).
The samples are intended for use in analytical systems using these and related methods. Note that nitric acid extraction in not as regorous as aqua regia, and these samples may not be suitable for method validation where an aqua regia extraction is used.
Sort by
Product Number: RM8704
Collected from the Buffalo River in the area of the Ohio Street Bridge, New York. Reference values given for 25 trace elements.
$292.00
|
Product Number: PR96962
Cyanide Polluted Sediment
$130.00
|
Product Number: LGC6137
Estuarine Sediment
$320.00
|
Product Number: SRM1646a
Collected from Chesapeake Bay, USA.
$524.00
|
Product Number: HR-1
HR-1 is a harbor sediment from the mouth of the Humber River near Toronto, Ontario. Similar in nature to the Toronto Harbor sediment (TH-1 and TH-2), this material has a lower concentration of copper, lead and mercury.
$250.00
|
Product Number: TH-1
TH-1 was collected from Toronto Harbor in 1981 and contains the highest levels of lead among the suite of 'trace metal' reference sediments. Prepared in two batched for the upper and lower portion of the box-core sampler.
$250.00
|
Product Number: TH-2
TH-2 was collected from Toronto Harbor in 1981 and contains the highest levels of lead among the suite of 'trace metal' reference sediments. Prepared in two batched for the upper and lower portion of the box-core sampler.
$250.00
|
Product Number: WQB-3
WQB-3 was prepared in 1978, from a blend of sediments for the heavy industrial regions of Hamilton Harbor and Lake Ontario. The sediment is certified for eight trace metals, including arsenic, selenium and mercury. As with certification of metals in WQB-1
$250.00
|
Product Number: SUD-1
SUD-1 was collected in 1980, from Lake Ramsey in Sudbury, Ontario. This area is well known for its mining industry. This is reflected in the elevated cobalt, copper and nickel levels in this reference sediment. In addition, SUD-1 has the lowest mercury level. 100g
$250.00
|
Product Number: WQB-1
WQB-1 was developed from 1977 to 1984, as the first certified lake sediment reference material for the analysis of arsenic, selenium and mercury. The concentration levels of these three elements were certified by multi-laboratory and multi-methodology app
$250.00
|