
【国外标准】 Standard Practice for Preparation of Water Samples Using Reductive Precipitation Preconcentration Technique for ICP-MS Analysis of Trace Metals
本网站 发布时间:
2024-02-28
开通会员免费在线看70000余条国内标准,赠送文本下载次数,单本最低仅合13.3元!还可享标准出版进度查询、定制跟踪推送、标准查新等超多特权!  
查看详情>>

适用范围:
5.1 Ambient marine waters generally contain very low concentrations of toxic metals that require sensitive analytical methods, such as ICP-MS, to detect and measure the metal's concentrations.5.2 Due to the high dissolved salt concentrations present in seawater, sample pretreatment is required to remove signal suppression and significant polyatomic interferences due to the matrix both of which compromise detection limits.1.1 Toxic elements may be present in ambient waters and may enter the food chain via uptake by plants and animals; the actual concentrations of toxic metals are usually sub-ng/mL. The U.S. EPA has published its Water Quality Standards in the U.S. Federal Register 40 CFR 131.36, Minimum requirements for water quality standards submission, Ch. I (7-1-00 Edition), see Annex, Table A1.1. The U.S. EPA has also developed Method 1640 to meet these requirements, see Annex, Table A1.2.1.2 Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) is a technique with sufficient sensitivity to routinely measure toxic elements in ambient waters, both fresh and saline (Test Method D5673). However saline and hard water matrices pose analytical challenges for direct multielement analysis by ICP-MS at the required sub-ng/mL levels.1.3 This practice describes a method used to prepare water samples for subsequent multielement analysis using ICP-MS. The practice is applicable to seawater and fresh water matrices, which may be filtered or digested. Samples prepared by this method have been analyzed by ICP-MS for the elements listed in Annex, Table A1.3).1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
标准号:
ASTM D6800-18
标准名称:
Standard Practice for Preparation of Water Samples Using Reductive Precipitation Preconcentration Technique for ICP-MS Analysis of Trace Metals
英文名称:
Standard Practice for Preparation of Water Samples Using Reductive Precipitation Preconcentration Technique for ICP-MS Analysis of Trace Metals标准状态:
Active-
发布日期:
-
实施日期:
出版语种:
- 推荐标准
- ASTM F3258-23 Standard Specification for Protectors for Rubber Insulating Gloves Meeting Specific Performance Requirements
- ASTM F3259-17 Standard Guide for Micro-computed Tomography of Tissue Engineered Scaffolds
- ASTM F3260-18 Standard Test Method for Determining the Flexural Stiffness of Medical Textiles
- ASTM F3262-17 Standard Classification System for Small Unmanned Aircraft Systems (sUASs) for Land Search and Rescue
- ASTM F3265-17(2023) Standard Test Method for Grid-Video Obstacle Measurement
- ASTM F3268-18a Standard Guide for in vitro Degradation Testing of Absorbable Metals
- ASTM F3270/F3270M-17 Standard Practice for Compression versus Load Properties of Gasket Materials
- ASTM F3273-17(2021)e1 Standard Specification for Wrought Molybdenum-47.5 Rhenium Alloy for Surgical Implants (UNS R03700)
- ASTM F3275-22 Standard Guide for Using a Force Tester to Evaluate Performance of a Brush Part Designed to Clean the Internal Channel of a Medical Device
- ASTM F3276-22 Standard Guide for Using a Force Tester to Evaluate the Performance of a Brush Part Designed to Clean the External Surface of a Medical Device
- ASTM F3277-19 Standard Specification for Cantilevered Steel Bunks Used in Detention and Correctional Facilities
- ASTM F3283/F3283M-18 Standard Specification for the Manufacturing of High-Voltage Proximity Alarm to be used for the Detection of Overhead High Voltage Alternating Current (AC)
- ASTM F3288/F3288M-20 Standard Specification for MRS-Rated Metric- and Inch-sized Crosslinked Polyethylene (PEX) Pressure Pipe
- ASTM F3292-19 Standard Practice for Inspection of Spinal Implants Undergoing Testing
- ASTM F3293-18 Standard Guide for Application of Test Soils for the Validation of Cleaning Methods for Reusable Medical Devices