GB/T 18882.4-2024 离子型稀土矿混合稀土氧化物化学分析方法 第4部分：三氧化二铁含量的测定 电感耦合等离子体发射光谱法

ICS 77.120.99
CCS H 14
中华人民共和国国家标准
GB/T 18882.4—2024
离子型稀土矿混合稀土氧化物
化学分析方法
第 4 部分：三氧化二铁含量的测定
电感耦合等离子体发射光谱法
Chemical analysis methods of mixed rare earth oxide of ion-absorption
rare earth ore—
Part 4：Determination of iron trioxide content—Inductively coupled
plasma atomic emission spectrometry
2024-11-28 发布2025-06-01 实施
国家市场监督管理总局
国家标准化管理委员会发 布

目　　次
前言 ····································································································· Ⅲ
引言 ····································································································· Ⅳ
1 范围 ·································································································· 1
2 规范性引用文件 ······················································································ 1
3 术语和定义 ··························································································· 1
4 原理 ·································································································· 1
5 试剂或材料 ··························································································· 1
6 仪器设备 ······························································································ 2
7 样品 ·································································································· 2
8 试验步骤 ······························································································ 2
8.1 试料 ······························································································ 2
8.2 平行试验 ························································································· 2
8.3 空白试验 ························································································· 3
8.4 分析试液的制备 ················································································· 3
8.5 系列标准溶液的配制 ············································································· 3
8.6 标准曲线的绘制与测定 ·········································································· 3
9 试验数据处理 ························································································· 4
10 精密度 ······························································································· 4
10.1 精密度原始数据及统计 ········································································· 4
10.2 重复性 ·························································································· 4
10.3 再现性 ·························································································· 5

前　　言
本文件按照GB/T 1.1—2020《标准化工作导则 第1 部分：标准化文件的结构和起草规则》的规定
起草。
本文件是GB/T 18882《离子型稀土矿混合稀土氧化物化学分析方法》的第4 部分。GB/T 18882
已经发布了以下部分：
—第1部分：十五个稀土元素氧化物配分量的测定；
—第2部分：三氧化二铝量的测定；
—第3部分：二氧化硅含量的测定；
—第4部分：三氧化二铁含量的测定 电感耦合等离子体发射光谱法。
请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。
本文件由全国稀土标