Document Lpvnyr1ynwBvabMXgmKGozrz3

BACK TO MAIN Analytical Report Fluorochemical Characterization of POTW Effluent Mobile, Alabama (W2151) Centre Analytical Laboratory Report No. 023-014K (Revision 1) Revision Date 3/26/01 ~ ~~ ~ ~~~ Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R. Lindstrom Bldg. 2-3E-09 P.O. Box 33331 St. Paul, MN 55133-3331 Phone: (651) 778-5352 Requester Kris J. Hansen, Ph.D. 3M EnvironmentalTechnology & Safety Services Bldg. 2-3E-09 P.O. Box 33331 St. Paul, MN 55133-3331 PAGE 1 OF 5 BACK TO MAIN I Introduction Results are reportedfor the analysis of a series of P O W effluent samples received by Centre Analytical Laboratories, Inc. (Centre)from the 3M EnvironmentalLaboratory. The samples were collectedfrom Mobile, Alabama. The Centre study number assigned to the project is 023-014. Specific fluorochemical characterization by liquid chromatography / tandem mass spectrometry (LC/MS/MS) was requested for all samples. A total of 4 samples were received for analysis. The samples were prepared and analyzed by LC/MS/MS for the following list of fluorochemicals: 0 Table 1:Target Analysis Compound Name Perfluorooctane Sulfonate Perfluorooctane Sulfonvlamide Perfluorooctanoate ~ Acronvm PFOS PFOSA POAA The analytical method used was validated by Centre. The validation protocol and results are on file with Centre. Data presented here is the highest quality data available at this time. 2 Sample Receipt The samples were submitted in individual plastic containers and were not presetved. Four individual sample containers were received. Samples were received on 6/6/00. The sample collection dates were not supplied. Chain-of-custodyinformationis presentedin Attachment C. 3 Holding Times The analytical method used was validated against a maximum holding time of 14 days. The stability of the analytes of interest for longer periods has not been determined. However, it should be noted that field fortifications in water and other matrices at 100 and 1000 ng/L have shown acceptable recoveries for periods longer than 14 days. 4 Methods - Analytical and Preparatory 4.1 4.1.1 LC/MS/MS Sample Preparation for LC/MS/MS Analysis Samples were initially treated with 200 ULof 250 mg/L sodium thiosulfate solution to remove residual chlorine. Solid phase extraction (SPE) was used to prepare the samples for LC/MS/MS analysis. A forty-milliliterportion of sample was transferredto a C18SPE cartridge. The cartridge was first eluted with 5 mL of 40% methanol in water solution. The eluate was discarded and the SPE column was then eluted with 100% methanol. A 5 ml portion of PAGE 2 OF5 BACK TO MAIN methanol was collected for analysis by LC/MS/MS. This treatment resulted in an eight-fold concentration of the samples prior to analysis. 4.1.2 Sample Analysis by LC/MS/MS In HPLC, an aliquot of extract is injectedand passed through a liquid-phasechromatographic column. Based on the affinity of the analyte for the stationary phase in the column relative to the liquid mobile phase, the analyte is retained for a characteristic amount of time. Following HPLC separation, ES/MS provides a rapid and accurate means for analyzing a wide range of organic compounds, including fluorochemicals. Electrospray is generally operated at relatively mild temperatures; molecules are ionized, fragmented, and detected. Ions characteristic of known fluorochemicalsare observed and quantitated against standards. A Hewlett-PackardHP1100 HPLC system coupledto a Micromass Ultima MS/MS was used to analyze the sample extracts. Analysis was performed using selected reaction monitoring (SRM). Samples were extracted on 6/12/00 and analyzed by MS/MS on 6/14/00. The HPLC and MS/MS methods used for analysis and instrument parameterscan be found in attachment U. 5 Analysis 5.1 Calibration A 7-point calibration curve was analyzed at the beginning and end of the analytical sequence for the compounds of interest. The calibration points were prepared at 0, 25, 50, 100, 250, 500, and 1000 ng/L (ppt) The response of the quantitation ion versus the concentration was plotted for each point. Using linear regression with l/x weighting, the slope, y-intercept and correlation coefficient (r) and coefficient of determination (?) were determined. A calibration curve is acceptable if r 20.985 (?2 0.970). Calibration standards are prepared using the same SPE procedure used for samples. Calibration check standards were analyzed periodically (every three to five sample injections) throughout the analysis sequence. Compliance is obtained if the standard analyte concentrationsare within +/-20% of the actual value. For the results reported here, calibration criteria were met. 5.2 Blanks Extraction blanks were prepared and analyzed with every extraction batch of samples. The extraction blanks should not have any target analytes present at or above the concentration of the low-levelcalibrationstandard. For these samples, the extractionblankswere compliant. Instrument blanks in the form of clean methanol solvent were also analyzed after every highlevel calibration standard, and after known high-level samples. Again, the blanks should not have any target analytes present at or above the low-level calibration standard. For the samples presentedhere the instrument blanks are compliant. 5.3 Surrogates Surrogate spikes are not a component of the LC/MS/MS analytical method. PAGE 3OF5 BACK TO MAIN 5.4 Matrix Spikes Matrix spikes were prepared for every sample at a concentration of 100 ng/L using all compounds of interest. Matrix spike recoveries are given in Attachment B. All recoveries were between 70-130%. Field spikes were also prepared at a concentration of 1000 ng/L. All field spike recoveries were between 70 -1 30%. Field spike recoveries are also given in Attachment B. 5.5 Duplicates All samples were analyzed in duplicate. Results are given along with the sample results in Attachment A. 5.6 Laboratory Control Samples Milliq water was spiked with all compound of interest at 25 and 250 ngR. All recoveries for all compounds were between 70-130% in each LCS. 5.7 Sample Related Comments Field blank samples consisted of empty containers. Forty milliliters of type I water filtered through a hypercarb cartridge was added to the empty container and analyzed in the same manner as the other samples. 6 Data Summary Please see Attachment A for a detailed listing of the analytical results. 7 DatdSample Retention Samples are disposed of one month after the report is issued unless otherwise specified. All electronic data is archived on retrievable media and hard copy reports are stored in data folders maintained by Centre. 8 Attachments 8.1 Attachment A: Results 8.2 Attachment B: Matrix Spike Recoveries (Field and Laboratory Spikes) 8.3 Attachment C: Chain of Custody 8.4 Attachment D: LC/MS/MS Raw Analytical Data PAGE 4 OF 5 BACK TO MAIN 9 Signatures Other Lab Members Contributing to Data Enaksha Wickremesinhe Karen Smith Date &MlAel-t,f 2- I Date PAGE 5 OF5 a\Laboratorks. Inc. CEntre Analytical 3048 Research Drive, State College PA 16801 814-231-8032 FAX 814-231-1253 BACK TO MAIN Analytical Results W2151 Mobile, Alabama 3M Sample Identification MC-439H P O W Effluent NA Duplicate P O W Effluent MC-443H Sample Description PIN Ion Pair PIN Ion Pair Duplicate Field Blank PIN Empty PFOS (ng/L) 53.8 41.2 ND PFOSA (ng/L) NQ NQ ND Limit of Detection (LOD) for the procedure is appoximately 2.5 ng/L for PFOS and PFOSA and 7.5 ng/L for POAA Limit of Quantitation (LOO) for the procedure is 25 ng/L for all compounds ND - Compound not detected NQ - Compound detected at a level between the LOD and LOQ. Result is not quantifiable. ND c LOD c NQ c LOQ POAA (ng/L) 87.9 67.2 ND @ Please refer to the reverse side for our standard terms and conditions. BACK TO MAIN Form38778 - P M ) Shlpplng Address: 3MBldg N E 4 9 935 Bush Averme SI Peul.MN 55106 Telephone: Sample Receivlng: (651) 7784848 Alternate: (651) 778-6753 FAX:(651) n8-8176 - Contact Name Company p! t! .. (melhod. l i i i ofdetection,re& - . units. etc ) -139 Project IDlProject Name b w o l b Template # uaq Project Lead KTIJ Dept. # (main) \ 4*&Yr2SIP1SL_CPL - . ,%+&A Final Report Due Date /4c3+cl Is Internal Due Date ClasslJoblProject # o o \ o s 3 s & 4 * Date Available Cc/as I $0- 3333 1 Date Due Contract Lab Preservatives: Analysis Requested: Complete below. Attach any associated Information. Item # Client Sample Identification I z 3M LIMS# Date Time Sampled Sampled Matrix/ Media nler the number of wntainers of ead 5. I - 7. 8. 9. I - I IA 10. Collected by (print): Item # u) 0"c 0 c -c(P 0 1n J T QyI I I Relinquished by/Amliation &Ism I I Time PI/+ I I I I - Collector's signature: Date Shipped Via: h/a/m IA Received bylAffiliation fl//L / AO//$62 Time ,, j ) O Dale $3 (,J Peg. - Oriiinal -Accompanying Sampler Last Page - Originalor See Reverse Side for lnslructions BACK TO MAIN Attachment B: LC/MS/MS Laboratory Spike Recovery Sample ID: MC-442H I PFOS PFOSA i POAA Sample Concentration (ng/L) 53.8 5.2 87.9 Matrix Spike Result (ng/L) 177 109 169 Matrix Spike Result (% Recovery) 123.2 103.8 81.1 Criteria (Pass / Fail) PASS PASS PASS Upper Recovery Limit: I 130 Note: Sample results less than 25 ng/L are reported as NQ in the results section as they are below the limit of quantitation. Results are given in this table for recovery calculations only. BACK TO MAIN Attachment B: LC/MS/MS Field Spike Recovery Sample ID: I MC-441H I Spiked Amount (ng/L): 1000 1 PFOS PFOSA POAA Sample Concentration 53.8 5.2 87.9 Matrix Spike Result (ng/L) 1158 980 909 Matrix Spike Result (% Recovery) 110.4 97.5 82.1 Criteria (Pass / Fail) PASS PASS PASS Lower Recovery Limit: Upper Recovery Limit: 70 1 130 I Note: Sample results less than 25 ng/L are reported as NQ in the results section as they are below the limit of quantitation. Results are given in this table for recovery calculations only.