Processing kodak motion picture films, module 3 analytical procedures

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Calculations Note: Total oxidizing compounds can be reported as potassium, ammonium, or sodium persulfate, g/L. 1. Potassium Persulfate: VNF-1/RVNP K 2 S 2 O 8 , g/L = 6.75(mL B – mL A) 2. Ammonium Persulfate: VNF-1/RVNP (NH 4 ) 2 S 2 O 8 , g/L = 5.70(mL B – mL A) 3. Sodium Persulfate: VNF-1/RVNP Na 2 S 2 O 8 , g/L = 5.95(mL B – mL A) 2 Processing KODAK Motion Picture Films, Module 3, Analytical Procedures H24.03
Spectrophotometric Determination of Kodak Reversal Agent in Reversal Color Developer ECR-0001-1 INTRODUCTION KODAK Reversal Agent, reducing agent Tertiary Butylamine Borane (RA-1), reduces molybdophosphoric acid to molybdenum blue. Since the intensity of the molybdenum blue is affected by KODAK Anti-Calcium No. 4, several milliliters of the sequestrant are added to the reaction mixture to saturate the system. The absorbance of the molybdenum blue formed is measured at 725 nm. The molybdenum blue color is both temperature and time dependent, however it was determined that the temperature effect is not practically significant when reagents are at room temperature (20°C-25°C). Time dependence effect is minimized using a specified procedure time of five minutes. Use of this method requires handling potentially hazardous chemicals. Material Safety Data Sheets (MSDS) should be consulted for each chemical before use. These can be obtained from each chemical supplier. PRECISION AND BIAS A. Repeatability Standard Deviation, 1sr and 95 Percent Confidence Estimate (not including Bias) Repeatability standard deviation is an estimate of the variability one trained analyst should be able to obtain under favorable conditions (analyzing a sample, with one instrument, within one day). The 95 percent confidence estimate (calculated using the repeatability standard deviation) around a single test result will include the mean value 95 percent of the time. To obtain the repeatability data, a single skilled analyst performed five (5) replicates on each of the following solutions during methods development. 1. A “fresh” Reversal Color Developer tank prepared with all components at their respective “working tank” aim concentrations. 2. A “seasoned” Reversal Color Developer tank analyzed spectrophotometrically as received, at 113.3 mg/L RA-1. 3. The same “seasoned” solution as in number 2, above, reanalyzed after making an analytically weighed, standard addition of 33.0 mg/L RA-1. Sample “Fresh” (prepared at 82.2 mg/L) “Seasoned” as Received “Seasoned” plus Standard Addition Bias Bias is a statistically significant deviation of the mean from the known mix level at a 95 percent confidence level. It is determined for fresh samples only. Bias is not determined for seasoned samples, since the component concentration level was not determined independent of the test method. A bias of 0.8 mg/L RA-1 was found not to be statistically significant at the 95 percent confidence level. Recovery Recovery is used for seasoned samples, since the component concentration level was not determined independently of the test method. It is defined as the calculated mean for the seasoned sample with a standard addition of the component minus the mean for the seasoned sample, divided by the actual amount of the standard addition. It is expressed as a percentage. Statistically, the recovery of 78.79 percent was significantly different from 100 percent at the 95 percent confidence level, but was judged not to be practically significant. Processing KODAK Motion Picture Films, Module 3, Analytical Procedures H24.03 1 RA-1 Mean (mg/L RA-1) N Repeatability Standard Deviation, 1s r (mg/L RA-1) 95 Percent Confidence Estimate (mg/L RA-1) 83.0 5 1.48 ± 4.1 113.3 5 3.25 ± 9.0 139.3 5 0.84 ± 2.3
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©Eastman Kodak Company, 1999 Proce
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ECP-2-1101 Ferrocyanide in Ferricya
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3 Analytical Procedures for Chemica
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Spectrophotometric Determination of
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Potentiometric Determination of Bro
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PROCEDURE B For Seasoned Tank and R
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APPARATUS All volumetric glassware
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APPARATUS All pipettes and volumetr
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Potentiometric Determination of Amm
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PROCEDURE A. Sample Treatment 1. Pi
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Titrimetric Determination of Buffer
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Buffering Capacity Determination of
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Titrimetric Determination of EASTMA
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VISUAL TITRATION STATISTICS Repeata
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Back-Extraction of the Developing A
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Potentiometric Determination of Fer
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Recovery Recovery is used instead o
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CALCULATIONS For Na3Fe(CN) 6 g/L Na
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Cerimetric Determination of Sodium
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Bias Bias is a statistically signif
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APPARATUS Pipet (40-mL) Graduated C
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B. Analysis of Standards 1. Run eac
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Determination of Ferrous Iron in EA
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PROCEDURE Blank 1. Set a double-bea
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APPENDIX B This appendix contains t
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Titrimetric Determination of Hypo I
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B. Thiosulfate Determination 1. Sam
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Example Potentiometric Calculations
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APPARATUS Double Beam Spectrophotom
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APPENDIX II This appendix contains
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Calculations a. Range: 0.5-2.5 g/L
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APPENDIX 2 Typical Absorptivity mL
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Procedure Preparation of 10 g/L Iro
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Determination of Total Iron in East
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Determination of Total Iron in East
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Determination of Total Iron in EAST
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12. Press ‘ZERO’. The instrumen
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PROCEDURE A. Spectrophotometer Zero
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Absorptivity of Iron-Thiocyanate Co
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Potentiometric Determination of Unc
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Potentiometric Determination of Kod
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Titrimetric Determination of Persul
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APPARATUS Conical Flask with stoppe
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Potentiometric Determination of Sil
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APPARATUS METROHM 536 Titrator or e
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Potentiometric Determination of Sod
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PROCEDURE Treatment of the Sample 1
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Iodometric Determination of Sodium
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Determination of Sodium Sulfite in
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Procedure Treatment and Titration o
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Iodometric Determination of Sulfite
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Potentiometric Determination of Tot
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Automated Titration An example of a
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Titrimetric Determination of EASTMA
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VISUAL TITRATION STATISTICS Repeata
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Titration of the Developing Agent w
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Cerimetric Determination of CD-2 Co
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Cerimetric Determination of KODAK C
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Back-Extraction of CD-2 1. Add 50 m
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CALCULATIONS For Na3Fe(CN) 6 g/L Na
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Bias Bias is a statistically signif
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Hydroquinone in Sound Track Develop
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Titrimetric Determination of Hypo I
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B. Thiosulfate Determination 1. Sam
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Examples: Titration mL 0.1 N Na 2S
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Potentiometric Determination of Pot
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Potentiometric Determination of Kod
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PROCEDURE A. Preparation of Sample
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Titrimetric Determination of Persul
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APPARATUS Conical Flask with stoppe
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Determination of the pH of the East
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Determination of the pH of Processe
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Page 191 and 192: II. Visual Endpoint Titrations A. R
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Page 217 and 218: Titrimetric Determination of Ferric
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Potentiometric Titrations for Photo
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difference corresponds to the poten
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Determination of Residual Thiosulfa
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APPENDIX A Calibration Procedure Th
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Determination of Silver in Thiosulf
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Note: The appropriate amounts of 0.
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The Determination of Specific Gravi
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Instructions for Performance Checks
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Processing KODAK Motion Picture Fil
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