Standard solutions of PCDDs/Fs and PCBs congeners, namely, EPA-1613 STOCK (Native Stock Solution), EPA-1613 LCS (13C12-labeled compound stock solution), EPA-1613 ISS (internal standard solution), and EPA-1613 CVS (calibration and verification solutions, CS1–CS4) for PCDDs/Fs, and WP-STOCK, WP-LCS, WP-ISS, and WP-CVS (CS1–CS6) for dl-PCBs, were purchased from Wellington Laboratories Inc. (Guelph, ON, Canada). The organic solvents n-hexane and DCM and ethyl ether for pesticide residue analysis (all of analytical grade) were purchased from J.T. Baker (Phillipsburg, NJ, USA). Anhydrous sodium sulfate (Na2SO4) from FUJI-FILM Wako Chemicals USA Corporation (Richmond, VA, USA) and 95% sulfuric acid from Merck (Darmstadt, Germany) were used. The multilayer silica gel column packed in a glass tube (O.D. 6.35 mm × length 35 cm) was purchased from Supelco (Bellefonte, PA, USA). This column was composed of 3 g 10% Ag-NO3/silica gel, 0.9 g silica gel, 22% H2SO4/silica gel, 4.5 g 44% H2SO4/silica gel, 0.9 g silica gel, 3 g 2% KOH/silica gel, and 0.9 g silica gel. Florisil with a mesh size of 60–100 mesh purchased from Merck was used.
Epa 1613 iss
Manufactured by Wellington Laboratories
Sourced in Canada
The EPA-1613 ISS is a laboratory instrument designed for the analysis of dioxins and furans in various environmental and food samples. It is used to perform high-resolution gas chromatography and high-resolution mass spectrometry (HRGC/HRMS) in accordance with the EPA Method 1613 protocol.
Automatically generated - may contain errors
Lab products found in correlation
Epa 1613 lcs, by Wellington Laboratories (3 mentions)
Wp iss, by Wellington Laboratories (3 mentions)
N hexane, by Avantor (1 mentions)
Florisil, by Merck Group (1 mentions)
Wp lcs, by Wellington Laboratories (1 mentions)
Hplc grade acetone, by Merck Group (1 mentions)
N hexane, by Merck Group (1 mentions)
Dichloromethane, by Merck Group (1 mentions)
Toluene, by Merck Group (1 mentions)
3 protocols using epa 1613 iss
1
Analytical standards for PCDD/Fs and dl-PCBs
2
Analytical Protocol for Dioxins and PCBs
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High-purity reagents dichloromethane, n-hexane, and toluene and HPLC grade acetone were supplied by Merck (Taufkirchen, Germany). 1 µm PTFE filters were supplied by Pall Corporation (South Wagner Road, USA). Columns for sample preparation such as CLDS-ABN-STD (silica), CLDA-BAS-011 (alumina), and CLDC-CCE-034 (carbon) were supplied by Fluid Management System (Watertown, MA, USA) and glass wool for filtration from Merck (Taufkirchen, Germany). Nonane puriss standard for GC was supplied by Merck (Taufkirchen, Germany). The 17 high-purity certified commercial standards of 2,3,7,8-chloro-subsituted PCDD and PCDF and the 12 dl-PCBs congeners, as well as surrogates (EPA1613-LCS and WP-LCS) and internal standards (EPA1613-ISS and WP-ISS), were purchased from Wellington Laboratories (Guelph, ON, Canada).
3
PCDD/Fs and dl-PCBs Quantification
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PCDD/Fs precision and recovery stock solution with native compounds (EPA 1613 PAR), PCDD/Fs labelled compound stock solution for extraction (EPA 1613 LCS), PCDD/PCDFs internal standard spiking solution for injection (EPA 1613 ISS) and PCDD/Fs calibration and verification standards (EPA 1613 CSL, CS1-CS5), all in nonane solution, were purchased from Wellington Laboratories (Ontario, Canada). The dl-PCBs native solution for precision and recovery (WP-STK), dl-PCBs surrogate spiking solution for extraction (WP-LCS), dl-PCBs internal standard solution for injection standards (WP-ISS) and dl-PCBs calibration and verification standards (WP-CS1-CS7), all in nonane solution, were also purchased from Wellington Laboratories (Ontario, Canada). All internal standards were 13 C 12 -labelled compounds. All solvents were from Merck (pesticide grade; Darmstad, Germany). Soxhlet cellulose extraction thimbles (30 mm × 80 mm) were from Schleicher & Schuell (Dassel, Germany). Power-prep columns were from Power Prep (Fluid Management System, Waltham, MA, USA); silica (19 cm), basic alumina (11 g, 19 cm) and carbon/Celite (0.34 g, 4 cm) columns were used.
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