GB/T 27860-2011
ActiveChemicals—Estimation of the adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC)
化学品 高效液相色谱法估算土壤和污泥的吸附系数
Catalogue
前言 → 1 范围 → 2 规范性引用文件 → 3 术语和定义 → 4 受试物信息 → 5 方法概述 → 6 试验准备 → 7 试验 → 8 质量控制 → 9 数据与报告 → 附录A → 附录B Foreword → 1 Scope → 2 Normative References → 3 Terms and Definitions → 4 Test Substance Information → 5 Method Overview → 6 Test Preparation → 7 Test → 8 Quality Control → 9 Data and Report → Annex A → Annex B
Scope
This standard specifies the terms and definitions, test substance information, method overview, test preparation, test, quality control, data and report for estimating the adsorption coefficient of chemicals in soil and sewage sludge by high performance liquid chromatography (HPLC). This standard is applicable to substances that are chemically stable during the test period, especially those difficult to test by other methods, such as volatile substances, substances whose concentration cannot be analyzed and detected due to poor water solubility, and chemical substances with strong affinity to adsorption test vessels. It is also applicable to mixture systems that cannot be completely separated into elution bands (the upper and lower limits of lgKoc of the test mixture should be given). The applicable adsorption coefficient (lgKoc) range of this standard is 1.5 to 5.0. This standard is not applicable to substances that can react with the HPLC stationary phase or mobile phase, substances that can interact with certain inorganic substances in a special way (e.g., forming complexes with clay mineral bases), and surfactants, inorganic substances, medium-strong acids and bases.
本标准规定了高效液相色谱法(HPLC)估算化学品在土壤和污泥中吸附系数的术语和定义、受试物信息、方法概述、试验准备、试验、质量控制、数据与报告。本标准适用于试验期间化学性质稳定的物质，尤其适用于难以用其他方法测试的物质，如：挥发性物质、由于水溶性差而无法分析检测其浓度的物质、对吸附试验器皿具有强亲和性的化学物质，也适用于含有不能完全分离洗脱带的混合物体系(测试混合物的lgKoc应给出其上下限)。本标准适用的吸附系数(lgKoc)范围为1.5～5.0。本标准不适用于可与高效液相色谱固定相或流动相发生反应的物质、可与某些无机物以特殊方式发生作用的物质(如，与粘土矿物质基础形成络合物)和表面活性剂、无机物、中强酸和碱。
Normative References
Keywords
Application Summary AI generated
Environmental testing laboratories and chemical safety assessors use this standard to rapidly estimate the adsorption coefficient of chemicals in soil and sewage sludge via HPLC. It is especially useful for volatile, poorly water-soluble, or otherwise difficult-to-test substances, providing critical data for environmental risk assessment. The standard matters because it offers a fast, cost-effective alternative to traditional batch equilibrium methods while maintaining comparable reliability.
环境检测机构和化学品安全评估人员使用本标准，通过高效液相色谱法快速估算化学品在土壤和污泥中的吸附系数。该方法特别适用于挥发性强、水溶性差或难以用传统批平衡法测试的物质，为化学品环境风险评估提供关键数据。本标准的重要性在于提供了一种快速、有效的替代方法，减少了试验时间和成本，同时保持了与批平衡法相当的结果可靠性。
AI Summary AI generated
This standard specifies a method for estimating the adsorption coefficient of chemicals in soil and sewage sludge using HPLC. It is applicable to chemically stable substances, especially those that are volatile, poorly water-soluble, or difficult to test by other methods. The method establishes a calibration curve between lgKoc and capacity factor lgk' of reference substances, then estimates the adsorption coefficient of the test substance by measuring its retention time. The standard details test preparation, procedures, quality control, and data processing, and provides reference substance lists and applicable substance examples. The method is rapid and effective, with results typically within ±0.5 lgKoc of batch equilibrium values.
本标准规定了用高效液相色谱法估算化学品在土壤和污泥中吸附系数的方法，适用于化学性质稳定的物质，尤其适合挥发性强、水溶性差或难以用其他方法测试的物质。方法基于建立参比物的lgKoc与容量因子lgk'的校准曲线，通过测定受试物的保留时间估算其吸附系数。标准详细描述了试验准备、操作步骤、质量控制和数据处理要求，并提供了参比物列表和适用物质示例。该方法快速有效，与批平衡法结果差异通常在±0.5 lgKoc以内。
Key Sentences extracted from text
本标准规定了高效液相色谱法(HPLC)估算化学品在土壤和污泥中吸附系数的术语和定义、受试物信息、方法概述、试验准备、试验、质量控制、数据与报告。
本标准适用于试验期间化学性质稳定的物质，尤其适用于难以用其他方法测试的物质，如：挥发性物质、由于水溶性差而无法分析检测其浓度的物质、对吸附试验器皿具有强亲和性的化学物质。
本标准适用的吸附系数(lgKoc)范围为1.5～5.0。
本标准不适用于可与高效液相色谱固定相或流动相发生反应的物质、可与某些无机物以特殊方式发生作用的物质(如，与粘土矿物质基础形成络合物)和表面活性剂、无机物、中强酸和碱。
一般情况下，用本方法估算的吸附系数与用批平衡法测得的吸附系数差异在±0.5 lgKoc。
This standard specifies the terms and definitions, test substance information, method overview, test preparation, test, quality control, data and report for estimating the adsorption coefficient of chemicals in soil and sewage sludge by high performance liquid chromatography (HPLC).
This standard is applicable to substances that are chemically stable during the test period, especially those difficult to test by other methods, such as volatile substances, substances whose concentration cannot be analyzed and detected due to poor water solubility, and chemical substances with strong affinity to adsorption test vessels.
The applicable adsorption coefficient (lgKoc) range of this standard is 1.5 to 5.0.
This standard is not applicable to substances that can react with the HPLC stationary phase or mobile phase, substances that can interact with certain inorganic substances in a special way (e.g., forming complexes with clay mineral bases), and surfactants, inorganic substances, medium-strong acids and bases.
In general, the difference between the adsorption coefficient estimated by this method and that measured by the batch equilibrium method is within ±0.5 lgKoc.