An Ion Chromatography Method for the Determination of Major Anions In Geothermal Water Samples

ABSTRAK.Sebuah studi telah dilakukan untuk menentukan kadar mineral mikro kation dan anion dalam sampel air panas bumi dengan teknik kromatografi ion. Semua sampel yang dikumpulkan, berasal dari beberapa titik sumber air panas bumi di Jailolo, Provinsi Maluku Utara. Kromatografi ion telah dikenal sebagai metode analitik yang sangat populer digunakan untuk menentukan kadar anorganik kation dan anion dalam berbagai jenis sampel air. Metode deteksi kromatografi ion menggunakan sistem konduktivitas yang tidak tertekan dan tertekan dapat diterapkan pada masing-masing penentuan kadar mineral kation dan anion. Dalam penelitian ini, kromatografi ion dengan sistem konduktivitas tidak ditekan digunakan untuk penentuan 7 jenis kation seperti Na+, NH4+, K+, Mg2+, Ca2+, Ba2+, dan Sr2+, sedangkan kromatografi ion dengan sistem konduktivitas ditekan digunakan untuk penentuan 7 jenis anion seperti F-, Cl-, NO2-, Br-, NO3-, SO42-, dan PO43-. Pada kadar 2,5 mmol/L HNO3 dan kombinasi 6 mmol/L Na2CO3+0,5 mmol/L NaHCO3 digunakan sebagai fase gerak untuk masing-masing penentuan kadar mineral mikro kation dan anion.ABSTRACT. Application of Ion Chromatography Technique to the Determination of Micro Mineral Concentration of Cations (Na+, NH4+, K+, Mg2+, Ca2+, Ba2+, and Sr2+) and Anions (F-, Cl-, Br-, NO2-, NO3-, SO42–, and PO43-) in Geothermal Water Samples for Balneotherapy.A study was conducted to determine the micro mineral concentration of cations and anions in geothermal water samples by ion chromatography (IC) techniques. All the samples were collected at several sampling points in Jailolo district, North Maluku Province. IC has been known to be a very popular analytical method used to determine the concentration of cations and anions in various types of water samples. With non-suppressed and suppressed conductivity detection, IC systems can be applied for the determination of cations and anions, respectively. In this study, IC with a non-suppressed system was used for the determination of seven cations such as Na+, NH4+, K+ Mg2+, Ca2+, Ba2+, and Sr2+. Meanwhile,IC witha suppressed system was used for the determination of 7 anions such as F-, Cl-, NO2-, Br-, NO3-, SO42-, and PO43-. A solution of 2.5 mmol/L HNO3 and a combination of 6 mmol/L Na2CO3 and 0.5 mmol/L NaHCO3 were used as the eluent for the determination of mineral cations and anions, respectively.

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Aplikasi Teknik Kromatografi Ion pada Penentuan Kadar Mineral Mikro Kation (Na+, NH4+, K+, Mg2+, Ca2+, Ba2+, dan Sr2+) dan Anion (F-, Cl-, Br-, NO2-, NO3-, SO42–, dan PO43-) dalam Sampel Air Panas Bumi untuk Tujuan Balneoterapi

ALCHEMY Jurnal Penelitian Kimia ◽

10.20961/alchemy.16.2.36210.171-178 ◽

2020 ◽

Vol 16 (2) ◽

pp. 171

Author(s):

Muhammad Amin ◽

Budhi Oktavia

Keyword(s):

Ion Chromatography ◽

Water Samples ◽

Analytical Method ◽

Geothermal Water ◽

Mineral Concentration ◽

Conductivity Detection ◽

Sampling Points ◽

Suppressed Conductivity Detection

Sebuah studi telah dilakukan untuk menentukan kadar mineral mikro kation dan anion dalam sampel air panas bumi dengan teknik kromatografi ion. Semua sampel yang dikumpulkan, berasal dari beberapa titik sumber air panas bumi di Jailolo, Provinsi Maluku Utara. Kromatografi ion telah dikenal sebagai metode analitik yang sangat populer digunakan untuk menentukan kadar anorganik kation dan anion dalam berbagai jenis sampel air. Metode deteksi kromatografi ion menggunakan sistem konduktivitas yang tidak tertekan dan tertekan dapat diterapkan pada masing-masing penentuan kadar mineral kation dan anion. Dalam penelitian ini, kromatografi ion dengan sistem konduktivitas tidak ditekan digunakan untuk penentuan 7 jenis kation seperti Na+, NH4+, K+, Mg2+, Ca2+, Ba2+, dan Sr2+, sedangkan kromatografi ion dengan sistem konduktivitas ditekan digunakan untuk penentuan 7 jenis anion seperti F-, Cl-, NO2-, Br-, NO3-, SO42-, dan PO43-. Pada kadar 2,5 mmol/L HNO3 dan kombinasi 6 mmol/L Na2CO3+0,5 mmol/L NaHCO3 digunakan sebagai fase gerak untuk masing-masing penentuan kadar mineral mikro kation dan anion.Application of Ion Chromatography Technique to the Determination of Micro Mineral Concentration of Cations (Na+, NH4+, K+, Mg2+, Ca2+, Ba2+, and Sr2+) and Anions (F-, Cl-, Br-, NO2-, NO3-, SO42–, and PO43-) in Geothermal Water Samples for Balneotherapy.A study was conducted to determine the micro mineral concentration of cations and anions in geothermal water samples by ion chromatography (IC) techniques. All the samples were collected at several sampling points in Jailolo district, North Maluku Province. IC has been known to be a very popular analytical method used to determine the concentration of cations and anions in various types of water samples. With non-suppressed and suppressed conductivity detection, IC systems can be applied for the determination of cations and anions, respectively. In this study, IC with a non-suppressed system was used for the determination of seven cations such as Na+, NH4+, K+ Mg2+, Ca2+, Ba2+, and Sr2+. Meanwhile,IC witha suppressed system was used for the determination of 7 anions such as F-, Cl-, NO2-, Br-, NO3-, SO42-, and PO43-. A solution of 2.5 mmol/L HNO3 and a combination of 6 mmol/L Na2CO3 and 0.5 mmol/L NaHCO3 were used as the eluent for the determination of mineral cations and anions, respectively.

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Stationary source emissions. Determination of mass concentration of sulfur dioxide. Ion chromatography method

10.3403/01331011 ◽

1998 ◽

Keyword(s):

Sulfur Dioxide ◽

Ion Chromatography ◽

Mass Concentration ◽

Chromatography Method ◽

Stationary Source

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Determination of Cl- in Concrete Materials by Ion Chromatography

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.680.52 ◽

2016 ◽

Vol 680 ◽

pp. 52-55

Author(s):

Hong Yan Guan ◽

Jian Jun Ding ◽

Zhong Bao Guo ◽

Ming Yu Wang ◽

Yi Fei Mei

Keyword(s):

Detection Limit ◽

Ion Chromatography ◽

Potential Method ◽

Concrete Cover ◽

Chloride Ions ◽

Accurate Analysis ◽

Chromatography Method ◽

Concrete Materials ◽

Corrosion Of Steel

The determination of chloride ions in concrete materials accurately is far and away crucial, since chloride ions can cause corrosion of steel and concrete cover off. The conventional potential method and silver nitrate titration method usually show features of simple operation and short duration, nevertheless, they are not suitable for accurate analysis for concrete attributing to their low accuracy and detection limit. In this paper, an ion chromatography method was presented to determine chlorine in concrete materials. Concrete samples were pre-processed and then extracted with distilled water. The extraction solutions were purified on a 0.22 μm filter membrane, an On Guard SPE-RP column and a SPE-H column sequentially for eliminating undissolved substance, organisms and metal ions before ion chromatographic analysis. The chromatographic separation was performed on a Dionex ICS-1000 Chromatographic using 25.0 mmol/L KOH solutions as mobile phase at 1.0 mL/min. Results show that the detection limit of the method was 0.004 mg/L. The linear relationship of the external Cl- standard solutions was 0.9994, and the sample analytical RSD was 0.44%.

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