亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Determination of Nine Mineral Elements in Hulless Barley by Ultraviolet Spectrophotometry and Flame Atomic Absorption Spectrometry

化学 分光光度法 原子吸收光谱法 分析化学(期刊) 马弗炉 质谱法 标准加入 检出限 色谱法 生物化学 量子力学 物理 催化作用 有机化学 煅烧
作者
Jin Liu,Huaigang Zhang
出处
期刊:Spectroscopy and Spectral Analysis [Science Press]
卷期号:30 (4): 1126-1129 被引量:1
标识
摘要

The contents of nine mineral elements, including sulphur, zinc, calcium, magnesium, potassium, sodium, iron, copper and manganese in five hulless barley (Hordeum vulgare L. var. nudum Hook. f.) lines were determined by ultraviolet spectrophotometry and flames atomic absorption spectrometry (FAAS). For the determination of sulphur, the samples were dissolved by magnesia and anhydrous sodium carbonate at 250 degrees C for 0. 5 h and at 550 degrees C for 3 h in the muffle furnace, and then a certain amount of barium chloride was put into the sample solution for colorimetry of the UV-Vs spectrophotometer. For the determination of other eight mineral elements, all of the samples were dissolved by a kind of incinerating method: first, the sample was put into the muffle furnace at 250 degrees C for 0. 5 h and at 550 degrees C for 2. 5 h, then two droplets of 50%HNO(3) were distributed into each sample, and the last step was putting the sample into the muffle furnace at 550 degrees C for 0. 5 h. And then all of the ash was dissolved by 50%HNO(4) to 50 milliliter and determined by flames atomic absorption spectrometry. The precision, accuracy, repeatability and stability of the method were discussed too. The results showed that the relative standard deviations (RSD) were between 1. 2% and 3. 7%; The average recoveries were 97. 44%-101. 52% and the relative standard deviations (RSD) of sample determination were 1. 3%-3. 8%. The repeatability experiment showed that the relative standard deviations (RSD) were 2. 6%-6. 1%. And the content of each mineral element was the same after 24 hours; All these showed that the method has a good precision, accuracy, repeatability and stability. In all the hulless barley samples, the average contents were in the order of K>S>Mg >Ca>Fe>Na>Zn>Mn>Cu, and the contents of zinc, iron and manganese closely related to people's health were relatively higher than other crops. The data of the experiment could provide an accurate and credible evidence for the deeper exploitation of the hulless barley.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
6秒前
量子星尘发布了新的文献求助10
52秒前
1分钟前
1分钟前
1分钟前
1分钟前
星辰大海应助科研通管家采纳,获得10
1分钟前
2分钟前
量子星尘发布了新的文献求助10
2分钟前
月儿完成签到 ,获得积分10
2分钟前
冬去春来完成签到 ,获得积分10
2分钟前
2分钟前
小江完成签到,获得积分10
2分钟前
gszy1975完成签到,获得积分10
2分钟前
3分钟前
3分钟前
Chaos完成签到 ,获得积分10
3分钟前
光合作用完成签到,获得积分10
3分钟前
3分钟前
3分钟前
3分钟前
八个猪宝贝完成签到,获得积分10
4分钟前
量子星尘发布了新的文献求助10
4分钟前
lameliu完成签到,获得积分10
4分钟前
4分钟前
香蕉觅云应助Viiigo采纳,获得10
4分钟前
4分钟前
量子星尘发布了新的文献求助10
5分钟前
5分钟前
老石完成签到 ,获得积分10
5分钟前
chichqq发布了新的文献求助30
5分钟前
5分钟前
evil发布了新的文献求助10
6分钟前
6分钟前
珂珂完成签到 ,获得积分10
6分钟前
小蘑菇应助evil采纳,获得10
6分钟前
7分钟前
量子星尘发布了新的文献求助10
7分钟前
7分钟前
7分钟前
高分求助中
The Mother of All Tableaux Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 2400
Ophthalmic Equipment Market by Devices(surgical: vitreorentinal,IOLs,OVDs,contact lens,RGP lens,backflush,diagnostic&monitoring:OCT,actorefractor,keratometer,tonometer,ophthalmoscpe,OVD), End User,Buying Criteria-Global Forecast to2029 2000
Optimal Transport: A Comprehensive Introduction to Modeling, Analysis, Simulation, Applications 800
Official Methods of Analysis of AOAC INTERNATIONAL 600
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 588
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
T/CIET 1202-2025 可吸收再生氧化纤维素止血材料 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3957061
求助须知:如何正确求助?哪些是违规求助? 3503084
关于积分的说明 11111255
捐赠科研通 3234121
什么是DOI,文献DOI怎么找? 1787751
邀请新用户注册赠送积分活动 870772
科研通“疑难数据库(出版商)”最低求助积分说明 802264