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METHOD ABSTRACTS123 continued from previous page10 ppm nitrite-nitrate standard using (a) 20 %methanesulfonic acid , (b) 20 % hydrochloric acidNitriteNitratea)b)0 10 20min(a) 0.05 ppm, (b) 0.01 ppm nitrite-nitrate standardNitritea)b)Nitrate0.0 5.0 10.0 15.0 minCalibration Curve for Nitrite-Nitrate (0.05 ppm – 50 ppm)2500000020000000y (nitrite) = 377491x + 204536R 2 = 0.99861500000010000000y (nitrate) = 166790x - 17901R 2 = 0.9985500000000NitriteNitrate10 20 30 40 50 60
METHOD ABSTRACTSBanana (baby food): (a) spiked with 100 ppmnitrite-nitrate solution, (b) blankCarrot (baby food): (a) spiked with 100 ppmnitrite-nitrate solution, (b) blankNitrateb)a)Nitratea)Nitriteb)0.0 5.0 10.0 15.0 minNitriteCorned Beef: (a) spiked with 50 ppm nitrite and500 ppm nitrate solution, (b) blank0.0 5.0 10.0 15.0 minNitratea)b)Nitrite0.0 5.0 10.0 15.0 min121SAMPLESPIKEDCONC.(PPM)NITRITECAL.CONC.(PPM)RECOVERY DATARECOVERY(%)SPIKEDCONC.(PPM)NITRATECAL.CONC.(PPM)RECOVERY(%)Baby FoodCarrot 100 92.25 92 100 79.3 79Banana 100 94.6 95 100 102.5 103ProcessedFoodCornedBeef50 54.4 109 500 478.9 96ACKNOWLEDGMENTSJohn A. Casanova, Food and Drug Administration, 60 8 th Street, Atlanta, GA 30309REFERENCES1. 1. AOAC- Offi cial Methods of Analysis of AOAC International (2000) 17th Ed., Section 50.1.11.2. Use of Griess Reagents Containing Vanadium (III) for the Post-columnDerivatization and Simultaneous Determination of Nitrite and Nitrite in Baby Food,John A. Casanova, Lois K. Gross, Sarah E. McMullen and Frank Schenck,Food and Drug Administration, 60 8th Street, Atlanta, GA 30309.PRODUCT CATALOGPICKERING LABORATORIES10/11
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TABLE OF CONTENTSINTRODUCTION3 Cust
Page 6 and 7:
INTRODUCTIONINSTALLATION & TRAINING
Page 8 and 9:
“A LOT HAS CHANGED SINCE PRODUCIN
Page 10 and 11:
INSTRUMENTS & HARDWAREFEATURE HIGHL
Page 12 and 13:
INSTRUMENTS & HARDWARE• Indoor us
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INSTRUMENTS & HARDWARECRX400 POST-C
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CHROMATOGRAMS, COLUMNS & GUARDSPick
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CHROMATOGRAMS, COLUMNS & GUARDSREVE
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CHROMATOGRAMS, COLUMNS & GUARDS70-M
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CHROMATOGRAMS, COLUMNS & GUARDSHIGH
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CHROMATOGRAMS, COLUMNS & GUARDSSTAN
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CHROMATOGRAMS, COLUMNS & GUARDSSODI
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CHROMATOGRAMS, COLUMNS & GUARDSHIGH
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CHROMATOGRAMS, COLUMNS & GUARDSSTAN
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CHROMATOGRAMS, COLUMNS & GUARDSCARB
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CHROMATOGRAMS, COLUMNS & GUARDSSEPA
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CHROMATOGRAMS, COLUMNS & GUARDSALKI
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CHROMATOGRAMS, COLUMNS & GUARDSCOND
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CHROMATOGRAMS, COLUMNS & GUARDSAFLA
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CHROMATOGRAMS, COLUMNS & GUARDSVOGL
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CHROMATOGRAMS, COLUMNS & GUARDSANAL
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“PURE CHEMICALS DO WHAT THEY ARE
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REAGENTS & CHEMICALSSERAPREP & URIP
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REAGENTS & CHEMICALSRESTORECHROMATO
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REAGENTS & CHEMICALSCALIBRATION STA
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ELUANTSCHROMATOGRAPHIC GRADEPickeri
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APPLICATION KITSAmino Acid Analysis
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BECKMAN 6300/7300 COLUMNS & CHEMICA
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REPLACEMENT COMPONENTS, FITTINGS &
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Page 72 and 73: REPLACEMENT COMPONENTS, FITTINGS &
Page 74 and 75: “THE LCTECH STORY”Pickering Lab
Page 76 and 77: LCTECH / GPC PRODUCT LINEGPC ULTRA
Page 78 and 79: LCTECH / GPC PRODUCT LINEUtilizing
Page 80 and 81: LCTECH / GPC PRODUCT LINE• Can be
Page 82 and 83: LCTECH / GPC PRODUCT LINEFEATURE HI
Page 84 and 85: LCTECH / GPC PRODUCT LINEFEATURE HI
Page 86 and 87: LCTECH / GPC PRODUCT LINE3Intensity
Page 88 and 89: LCTECH / GPC PRODUCT LINEEVA IIICON
Page 90 and 91: LCTECH / MYCOTOXIN PRODUCT LINEUV D
Page 92 and 93: LCTECH / MYCOTOXIN PRODUCT LINESAMP
Page 94 and 95: LCTECH / MYCOTOXIN PRODUCT LINEOTAR
Page 96 and 97: LCTECH / MYCOTOXIN PRODUCT LINEACCE
Page 98 and 99: “CUSTOMERS REALLY ONLY WANT THE C
Page 100 and 101: METHOD ABSTRACTS203.1 / MULTI-RESID
Page 102 and 103: METHOD ABSTRACTS208 / MULTI-RESIDUE
Page 104 and 105: METHOD ABSTRACTS328 / ANALYSIS OF A
Page 106 and 107: METHOD ABSTRACTS382 / 70-MIN AMINO
Page 108 and 109: METHOD ABSTRACTS205 / AMINOGLYCOSID
Page 110 and 111: METHOD ABSTRACTS102 / ANALYSIS OF B
Page 112 and 113: METHOD ABSTRACTS120 / BROMATE ANALY
Page 114 and 115: METHOD ABSTRACTS108 / POST-COLUMN L
Page 116 and 117: METHOD ABSTRACTS112 / EXPANDED HPLC
Page 118 and 119: METHOD ABSTRACTS325 / ANALYSIS OF F
Page 120 and 121: METHOD ABSTRACTS206 continued from
Page 124 and 125: METHOD ABSTRACTS105.2 / PARALYTIC S
Page 126 and 127: METHOD ABSTRACTS104 / POLYETHER ANT
Page 128 and 129: METHOD ABSTRACTS124 / SULFONAMIDE A
Page 130 and 131: METHOD ABSTRACTS327 continued from
Page 132 and 133: GENERAL TERMS & CONDITIONS1 CONTROL
Page 134: DISTRIBUTORSContinued from previous
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