scholarly journals The analysis of fluoride ion and its effect of Fe content in the coral skeleton

2021 ◽  
Author(s):  
Anugrah Ricky Wijaya ◽  
Cahyanti Wulan Suci ◽  
Retno Palupi Pangeswara ◽  
Eli Hendrik Sanjaya ◽  
Aman Santoso ◽  
...  
Keyword(s):  
Coral Skeleton ◽  
Fluoride Ion ◽  
Fe Content

Kajian Kandungan Fe dalam Air Tanah Terhadap Kadar Ekskresi Yodium dalam Urin pada Anak Sekolah di Desa Cerme Kecamatan Panjatan Kabupaten Kulon Progo

2017 ◽  
Vol 19 (1) ◽  
pp. 7-11
Author(s):  
Vivi Linda Fristianti ◽  
Nur Hidayat ◽  
Slamet Iskandar
Keyword(s):  
Elementary School ◽  
Ground Water ◽  
School Children ◽  
Laboratory Data ◽  
Simple Random Sampling ◽  
Optimal Level ◽  
The Body ◽  
Design Data ◽  
Cross Sectional ◽  
Fe Content

Background : IDD problem is a serious problem, 33% of districts in Indonesia are endemic, 21% of endemic mild, moderate endemic 5% and 7% by weight endemic. Urine Iodine Excretion (EYU) illustrates the iodine intake of a person, because 90% of the iodine that enter the body are excreted through the urine. Blocking agents are substances certain minerals such as iron, manganese and calcium, which can bind iodine in groundwater. Objectives : This study aims to determine the relationship of Fe content in ground water sources against EYU levels in school children in the village of the District Cerme Panjatan Kulon Progo. Methods : An observational analytic research with cross sectional design. Data collection is done in May - June 2015. Location research Elementary School Cerme, District Panjatan Kulon Progo. The subjects of the study as many as 34 children in elementary school classroom Cerme 3, 4 and 5 were taken by simple random sampling. Well water and urine samples taken students then tested the iron in the Central Health Laboratory test Yogyakarta and iodine in urine in Magelang BP2GAKY Laboratory. Data analysis using Spearman Range test with significancy level : 0.05. Result : Fe content in the ground water is below the normal threshold is <0.3 mg / L. While levels EYU school children who are under the optimal level of 5.9%, the optimal level of 32.4%, and the optimum levels above 61.8% (optimal: 100 - 199μg / L). Conclusion : There was no significant relationship between the Fe content in groundwater with levels of EYU in school children in District Panjatan Kulon Progo (p = 0.447).   Keywords: Fe, EYU

Coral Skeleton

2014 ◽  
Author(s):  
Rachel Frantz
Keyword(s):  
Coral Skeleton

Influence of Fe Content on Catalytic Reduction of N2O with CH4 over FeAlPO-5 Catalyst

2010 ◽  
Vol 31 (1) ◽  
pp. 68-71 ◽  
Author(s):  
Xiaoxu ZHAO ◽  
Dang-guo CHENG ◽  
Fengqiu CHEN ◽  
Xiaoli ZHAN
Keyword(s):  
Catalytic Reduction ◽  
Fe Content

Ultrasensitive, rapid and selective sensing of hazardous fluoride ion in aqueous solution using a zirconium porphyrinic luminescent metal-organic framework

2020 ◽  
Author(s):  
Beining Chen ◽  
Tingting Jiang ◽  
Heyun Fu ◽  
Xiaolei Qu ◽  
Zhaoyi Xu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Metal Organic Framework ◽  
Fluoride Ion ◽  
Metal Organic ◽  
Organic Framework

ChemInform Abstract: “ANHYDROUS” TETRABUTYLAMMONIUM FLUORIDE: A MILD BUT HIGHLY EFFICIENT SOURCE OF NUCLEOPHILIC FLUORIDE ION

1985 ◽  
Vol 16 (6) ◽  
Author(s):  
D. P. COX ◽  
J. TERPINSKI ◽  
W. LAWRYNOWICZ
Keyword(s):  
Fluoride Ion ◽  
Highly Efficient ◽  
Tetrabutylammonium Fluoride

Targeted Fluorination with the Fluoride Ion by Manganese-Catalyzed Decarboxylation

2015 ◽  
Vol 127 (17) ◽  
pp. 5330-5334 ◽  
Author(s):  
Xiongyi Huang ◽  
Wei Liu ◽  
Jacob M. Hooker ◽  
John T. Groves
Keyword(s):  
Fluoride Ion

Visible-Light-Driven Photoredox-Catalyzed Three-Component Radical Cyanoalkylfluorination of Alkenes with Oxime Esters and a Fluoride Ion

2021 ◽  
Author(s):  
Hao Qian ◽  
Jun Chen ◽  
Bin Zhang ◽  
Ying Cheng ◽  
Wen-Jing Xiao ◽  
...  
Keyword(s):  
Visible Light ◽  
Fluoride Ion ◽  
Visible Light Driven
Sign in / Sign up

Export Citation Format

Share Document