1.1 本规程涵盖了使用连接至原子吸收光谱仪的石墨炉测定溶液中微克每毫升（μg/mL）或更低浓度元素的程序。提供了设备的一般说明。建议准备测量仪器，建立最佳温度条件和其他标准，以确定有用的校准浓度范围，测量和计算试液分析物浓度。 1.2 以国际单位制表示的数值应视为标准值。括号中给出的值仅供参考。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 第节给出了具体的安全隐患说明 9 . ====意义和用途====== 4.1 本规程适用于试图建立GF-AAS程序的用户。这将有助于建立一个完整的原子吸收分析程序。

1.1 This practice covers a procedure for the determination of microgram per millilitre (μg/mL) or lower concentrations of elements in solution using a graphite furnace attached to an atomic absorption spectrometer. A general description of the equipment is provided. Recommendations are made for preparing the instrument for measurements, establishing optimum temperature conditions and other criteria which should result in determining a useful calibration concentration range, and measuring and calculating the test solution analyte concentration. 1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific safety hazard statements are given in Section 9 . ====== Significance And Use ====== 4.1 This practice is intended for users who are attempting to establish GF-AAS procedures. It should be helpful for establishing a complete atomic absorption analysis program.