Article(id=1188049103192731699, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188049099627574244, articleNumber=1009-5438(2024)02-0089-03, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1707667200000, receivedDateStr=2024-02-12, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1761182579085, onlineDateStr=2025-10-23, pubDate=1713974400000, pubDateStr=2024-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761182579085, onlineIssueDateStr=2025-10-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1761182579085, creator=13701087609, updateTime=1761182579085, updator=13701087609, issue=Issue{id=1188049099627574244, tenantId=1146029695717560320, journalId=1185652524569653253, year='2024', volume='50', issue='2', pageStart='1', pageEnd='98', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1761182578236, creator=13701087609, updateTime=1761291001661, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1188503860504052243, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188049099627574244, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1188503860504052244, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1188049099627574244, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=89, endPage=91, ext={EN=ArticleExt(id=1188049104128061500, articleId=1188049103192731699, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Methods for Determining Magnesium Content in Silica-based Materials with ICP (Inductively Coupled Plasma) Spectrometer, columnId=1187102804364640261, journalTitle=Science & Technology of Baotou Steel, columnName=Others, runingTitle=null, highlight=null, articleAbstract=

In the paper, the detection method of magnesium content in silica-based composite material is studied and its purpose is to accurately detect magnesium content in the process of preparing silica-based composite materials so as to control the content of magnesium silicate in final product. During the experiment, the method for determining magnesium content in magnesium silicate-carbon-encapsulated silicon oxide composite material with the inductively coupled plasma atomic emission spectrometry (ICP-AES) is established. Finally, it is verified that the detection limit is 0.004 mg/L, relative standard deviation of detection results is less than 5% and linearly dependent coefficient is above 0.999 so that this method is satisfied with the test of magnesium content.

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文章主要对硅基复合材料中镁含量的检测方法进行了研究,其检测目的是准确地检测出在制备硅基复合材料过程中镁的含量,从而对最终产物中的硅酸镁含量进行控制。在实验过程中建立了用电感耦合等离子体发射光谱法(ICP-AES)测定硅酸镁-碳包覆氧化亚硅复合材料中镁含量的方法,最终验证其检出限为0.004 mg/L,检测结果的相对标准偏差均小于5%,线性相关系数达到0.999以上,该方法满足镁含量的测定。

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程娟(1985-),女,内蒙古包头市人,硕士,工程师,现从事化学分析、检测方法开发等工作。

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程娟(1985-),女,内蒙古包头市人,硕士,工程师,现从事化学分析、检测方法开发等工作。

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程娟(1985-),女,内蒙古包头市人,硕士,工程师,现从事化学分析、检测方法开发等工作。

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样品 1 2 3 4 5 6 平均值 RSD
样品1 7.02 7.41 7.43 7.25 7.19 7.52 7.30 2.53
样品2 4.08 4.10 4.19 3.98 4.23 4.20 4.13 2.28
样品3 10.08 10.25 9.84 9.90 10.13 10.17 10.06 1.59
样品4 9.10 8.96 9.12 8.72 8.80 9.11 8.97 1.93
样品5 6.48 6.50 6.37 6.23 6.32 6.15 6.34 2.17
样品6 8.49 8.76 8.22 8.53 8.85 8.24 8.52 2.88
样品7 5.62 5.84 5.33 5.19 5.70 5.26 5.49 4.83
样品8 3.20 3.09 2.96 3.11 3.35 2.97 3.11 4.73
样品9 6.25 6.17 6.42 6.51 5.94 6.06 6.23 3.46
样品10 10.87 11.24 11.15 11.55 10.82 11.08 11.12 2.39
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方法精密度实验测试结果 %

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样品 1 2 3 4 5 6 平均值 RSD
样品1 7.02 7.41 7.43 7.25 7.19 7.52 7.30 2.53
样品2 4.08 4.10 4.19 3.98 4.23 4.20 4.13 2.28
样品3 10.08 10.25 9.84 9.90 10.13 10.17 10.06 1.59
样品4 9.10 8.96 9.12 8.72 8.80 9.11 8.97 1.93
样品5 6.48 6.50 6.37 6.23 6.32 6.15 6.34 2.17
样品6 8.49 8.76 8.22 8.53 8.85 8.24 8.52 2.88
样品7 5.62 5.84 5.33 5.19 5.70 5.26 5.49 4.83
样品8 3.20 3.09 2.96 3.11 3.35 2.97 3.11 4.73
样品9 6.25 6.17 6.42 6.51 5.94 6.06 6.23 3.46
样品10 10.87 11.24 11.15 11.55 10.82 11.08 11.12 2.39
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样品 测试值
/%
加标量
/(mg·L-1)
加标测试值
/%
加标回收率
/%
样品1 7.24
7.15
7.17
2
3
5
9.21
10.09
12.42
98.5
98.0
105.0
样品2 5.40
5.43
5.43
2
3
5
7.33
8.38
10.31
96.5
98.3
97.6
样品3 10.08
10.11
10.06
2
3
5
12.13
13.26
14.98
102.5
105.0
98.4
样品4 7.62
7.58
7.58
2
3
5
9.73
10.73
12.91
105.5
105.0
106.0
样品5 7.74
7.79
7.75
2
3
5
9.65
10.85
12.53
95.5
102.0
95.6
), ArticleFig(id=1188503023023174543, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1188049103192731699, language=CN, label=表2, caption=

加标回收实验测试结果

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样品 测试值
/%
加标量
/(mg·L-1)
加标测试值
/%
加标回收率
/%
样品1 7.24
7.15
7.17
2
3
5
9.21
10.09
12.42
98.5
98.0
105.0
样品2 5.40
5.43
5.43
2
3
5
7.33
8.38
10.31
96.5
98.3
97.6
样品3 10.08
10.11
10.06
2
3
5
12.13
13.26
14.98
102.5
105.0
98.4
样品4 7.62
7.58
7.58
2
3
5
9.73
10.73
12.91
105.5
105.0
106.0
样品5 7.74
7.79
7.75
2
3
5
9.65
10.85
12.53
95.5
102.0
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利用ICP光谱仪测定硅基材料中镁含量的方法
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程娟 , 刘敏静 , 耿艳辉 , 谷强 , 屈春花
包钢科技 | 其他 2024,50(2): 89-91
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包钢科技 | 其他 2024, 50(2): 89-91
利用ICP光谱仪测定硅基材料中镁含量的方法
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程娟, 刘敏静, 耿艳辉, 谷强, 屈春花
作者信息
  • 内蒙古杉杉科技有限公司,内蒙古 包头 014010
  • 程娟(1985-),女,内蒙古包头市人,硕士,工程师,现从事化学分析、检测方法开发等工作。

Methods for Determining Magnesium Content in Silica-based Materials with ICP (Inductively Coupled Plasma) Spectrometer
Juan Cheng, Min-jing Liu, Yan-hui Geng, Qiang Gu, Chun-hua Qu
Affiliations
  • Inner Mongolia Shanshan Science and Technology Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
出版时间: 2024-04-25
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文章主要对硅基复合材料中镁含量的检测方法进行了研究,其检测目的是准确地检测出在制备硅基复合材料过程中镁的含量,从而对最终产物中的硅酸镁含量进行控制。在实验过程中建立了用电感耦合等离子体发射光谱法(ICP-AES)测定硅酸镁-碳包覆氧化亚硅复合材料中镁含量的方法,最终验证其检出限为0.004 mg/L,检测结果的相对标准偏差均小于5%,线性相关系数达到0.999以上,该方法满足镁含量的测定。

硅基复合材料  /  镁含量  /  消解  /  ICP测试

In the paper, the detection method of magnesium content in silica-based composite material is studied and its purpose is to accurately detect magnesium content in the process of preparing silica-based composite materials so as to control the content of magnesium silicate in final product. During the experiment, the method for determining magnesium content in magnesium silicate-carbon-encapsulated silicon oxide composite material with the inductively coupled plasma atomic emission spectrometry (ICP-AES) is established. Finally, it is verified that the detection limit is 0.004 mg/L, relative standard deviation of detection results is less than 5% and linearly dependent coefficient is above 0.999 so that this method is satisfied with the test of magnesium content.

silica-based composite material  /  magnesium content  /  digestion  /  ICP test
程娟, 刘敏静, 耿艳辉, 谷强, 屈春花. 利用ICP光谱仪测定硅基材料中镁含量的方法. 包钢科技, 2024 , 50 (2) : 89 -91 .
Juan Cheng, Min-jing Liu, Yan-hui Geng, Qiang Gu, Chun-hua Qu. Methods for Determining Magnesium Content in Silica-based Materials with ICP (Inductively Coupled Plasma) Spectrometer[J]. Science & Technology of Baotou Steel, 2024 , 50 (2) : 89 -91 .
负极材料作为锂离子电池的重要组成部分,影响着锂离子电池的比容量及循环寿命,一直是锂离子电池研究的重点[1]。目前,以传统的石墨材料作为负极材料生产的锂电池,其理论比容量只有372 mAh/g,无法满足高储能的要求,因此需要找到一个新的负极材料来提高锂离子电池的各种性能。而硅基复合材料是科研人员研制出的一种新型负极材料,具有更好的循环稳定性和高理论比容量。该负极材料加入金属镁粉和氧化镁粉,镁含量与碳包覆硅基材料的加入比例是该复合材料高储能的研究关键。
电感耦合等离子体原子发射光谱仪(ICP-AES)是实验室常规分析仪器,因其检出限低、精密度高、线性范围宽、能同时对多种元素进行分析等优点,被广泛应用。本方法利用电感耦合等离子体发射光谱仪建立合适的标准曲线,对样品中的镁含量进行准确的定量分析。
电感耦合等离子体发射光谱仪(赛默飞世尔,Icap-7000 SERIES);万分之一电子分析天平;移液枪:100 μL。
氢氟酸:优级纯,ρ约为1.15 g/mL;盐酸:优级纯,ρ约为1.19 g/mL;硝酸:优级纯,ρ约为1.41 g/mL;镁标准溶液储备液:100 mg/L、10.00 mg/mL、1.00 mg/mL。
1+1硝酸:按1∶1的比例加入超纯水和硝酸,搅拌均匀待用;10%盐酸:准确量取450 mL超纯水,缓慢加入50 mL盐酸,搅拌均匀待用;1+1盐酸:按1∶1的比例加入超纯水和盐酸,搅拌均匀待用;镁标准溶液储备液I(ρ=100 mg/L):用移液枪准确移取1 mL浓度为10.00 mg/mL镁标准溶液于100 mL容量瓶中,用10%盐酸进行定容至标线,摇匀。
在万分之一的天平上准确称取0.20~0.25 g的样品(精确到0.01 g),放入50 mL聚四氟乙烯烧杯中,加入2 mL超纯水,先缓慢加入5 mL 1+1硝酸,再加入5 mL氢氟酸,放在电热板上在180 ℃进行加热消解,加热过程中轻轻摇匀至反应完全。然后将温度升高至220 ℃,消解至杯底有透明胶质出现,取下冷却。冷却后加入10 mL 1+1盐酸,使之与杯中透明物质充分反应,然后转移到50 mL容量瓶中,再用超纯水多次清洗,一同转入容量瓶中进行定容,稀释后在ICP上进行测试。
空白中加入2 mL超纯水代替样品,其他步骤同1.2.1,进行消解处理,消解完与样品稀释相同倍数,然后一同在ICP上进行分析测试。
氩气纯度:99.999%;氩气流量:0.5 L/min;功率:1 150 W;泵速:50 r/min;辅助器气体流量:0.5 L/min;冷却气体流量:12 L/min;波长范围:202~285 nm;观测方式:轴向观测。
分别移取100 mg/L的镁标准溶液1 mL、2 mL、5 mL、8 mL、10 mL至五个100 mL容量瓶中,容量瓶上做好标记以区分浓度。用10%盐酸定容至标线,摇匀,配置成的镁标准溶液浓度分别为1 mg/L、2 mg/L、5 mg/L、8 mg/L、10 mg/L,按此浓度绘制标准曲线。
选择分析谱线时要综合考虑元素的检出限、共存元素干扰、背景干扰和该元素的线性范围[2]。按1.3.2中所述浓度,结合镁标准曲线,参考线性相关系数,选择280.270 nm和279.079 nm两条镁元素谱线。通过比较标准溶液和待测样品溶液,剔除元素间互相干扰较大的谱线,保留灵敏度高、干扰小、信背比大的分析谱线[3]。经分析符合上述要求镁元素的谱线为279.079 nm的谱线。
根据2.1中选取的谱线得到的镁标准溶液曲线,以横坐标表示标准溶液浓度,纵坐标表示信号强度,得出镁元素线性回归方程为y=646.083x-11.548,线性相关系数R=0.999。
按上述选择的谱线与标准曲线对11个同时消解处理过的空白溶液进行测试,得到11组空白数据。根据元素测试浓度算出标准偏差,3倍的标准偏差即为镁元素的检出限(DL)[4],检出限为0.004 mg/L。
实验中分别对10个样品在相同测试条件下进行6次平行实验,实验结果参考HJ 974—2018《土壤和沉积物11种元素的测定 碱熔-电感耦合等离子体发射光谱法》进行计算,计算结果见表1
计算得出10个样品的6次平行测试的相对标准偏差在1.59%~4.83%之间,考虑到样品在前处理时人为或仪器引入的偏差和电感耦合等离子体发射光谱仪本身存在的测量误差,该方法精密度较为理想。
使用本实验方法对5个样品进行多次不同浓度加标量的加标回收实验,每次加标1 mL,加标回收率计算见表2
实验结果表明,该实验加标回收率在 95.5%~106.0%之间,满足分析质量通用要求,说明本方法符合基本实验的准确性和稳定性。
实验中用氢氟酸与硝酸的混酸加热消解,能有效地分解样品中难溶组分,电感耦合等离子体发射光谱仪能准确分析出硅基材料中的镁含量。该方法经过多次实验验证,检出限较低,相对标准偏差均小于5%,保证了分析方法的准确性。另外,该实验消解方法简单,测试流程短,操作简单,适合样品的批量检测。
参考文献 引证文献
排序方式:
[1]
Hui W, Yi C. Designing Nanostructured Si Anodes for High Energy Lithiumion Batteries[J]. Nano Today, 2012, 7(5):414-429.
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叶家谕, 江宝林. 区域地球化学勘察样品分析方法[M]. 北京: 地质出版社, 2004.
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王国峰, 王万祥, 张军伟. 土壤中重金属元素的测试方法研究[J]. 中国环境监测, 2012, 28(6):66-68.
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毛亚南, 贾月, 李俊, 等. ICP-OES测定四氧化二氮中5种金属元素含量[J]. 化学推进剂与高分子材料, 2023, 21(1):69-72.
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  • 接收时间:2024-02-12
  • 首发时间:2025-10-23
  • 出版时间:2024-04-25
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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