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Hach DR2400 User Manual

Hach DR2400
798 pages
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59400-22
DR/2400
Spectrophotometer
PROCEDURE MANUAL
© Hach Company, 2004. All rights reserved. Printed in the U.S.A. te/dk 3/04 1ed

Table of Contents

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Hach DR2400 Specifications

General IconGeneral
BrandHach
ModelDR2400
CategoryMeasuring Instruments
LanguageEnglish

Summary

Section 1 Introduction

1.1 Abbreviations Used in this Manual

Lists all abbreviations used throughout the manual for efficient understanding and reference.

1.2 Conversions

Provides conversion factors for various units of measure, useful for data interpretation and comparison.

Section 2 Laboratory Practices

2.3 Digestion

Explains sample digestion processes using chemicals and heat to break down substances for analysis.

2.5 Filtration

Details vacuum and gravity filtration methods for separating particulates from samples.

2.6 Reagents

Covers reagent stability, storage, and handling, emphasizing quality for accurate results.

2.7 Sample Dilution

Provides guidance on diluting samples to manage intense colors or interferences for measurable endpoints.

2.10 Sample Cells

Details care, orientation, cleaning, and matching of sample cells to ensure accurate measurements.

2.12 Achieving Accuracy in Volume Measurement

Focuses on accurate measurements using pipets and graduated cylinders, including meniscus reading.

Section 3 Chemical Analysis

3.1 Sample Collection, Preservation, and Storage

Critical steps for correct sampling, container use, cleaning, and preservation for accurate testing.

3.2 Checking for Accuracy and Precision

Evaluates test result accuracy and precision using standard additions or standard solutions.

3.3 Interferences

Identifies common contaminants that can cause errors and methods to remove or correct them.

3.4 Method Performance

Details performance characteristics like EDL, MDL, precision, and sensitivity for various tests.

3.5 Preparing a Calibration Curve

Guides on preparing standards and plotting data for accurate instrument calibration.

Section 4 Waste Management and Safety

4.1 Waste Minimization

Guidelines for decreasing waste management problems and expenses through efficient practices.

4.3 Hazardous Waste

Defines hazardous waste and outlines criteria for identification and management.

4.6 Safety

Covers essential safety practices, including reading labels, protective equipment, and general rules.

4.7 Material Safety Data Sheets

Explains MSDS information, hazards of chemical products, and how to obtain them.

Section 5 Procedures Explained

Sulfide Method 8131 Methylene Blue Method

Detailed procedure for determining sulfide concentration using the Methylene Blue method.

Aluminum Method 8012 Aluminon Method

Step-by-step guide for determining aluminum concentration using the Aluminon method.

Arsenic ✭Method 8013 Silver Diethyldithiocarbamate Method

Procedure for determining arsenic concentration using the Silver Diethyldithiocarbamate method.

Lead Method 8317 LeadTrak® Fast Column Extraction Method

Procedure for determining lead concentration using the LeadTrak Fast Column Extraction method.

Mercury Method 10065 Cold Vapor Mercury Concentration Method

Procedure for determining mercury concentration using the Cold Vapor Concentration method.

Phosphorus, Reactive (Orthophosphate) Method 8114 Molybdovanadate Method

Procedure for determining reactive phosphate (orthophosphate) using the Molybdovanadate method.

Sulfate ✭Method 8051 SulfaVer 4 Method

Procedure for determining sulfate concentration using the SulfaVer 4 method.

Zinc ✭Method 8009 Zincon Method

Procedure for determining zinc concentration using the Zincon method.

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