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DETERMINATION OF KOH EFFICIENCY AS CARBOSORB IN DETERMINING AGE OF CORAL REEF SAMPLES IN SELAYAR ISLANDS THROUGH LSC METHOD (LIQUID SCINTILLATION COUNTING)

Marina Chimica Acta · Vol. 20 No. 1 (2019)

ISSN
1411-2132
Published
2019-05-20
Publisher
Hasanuddin University
Language
en

Abstract

Research using the method of LSC (Liquid Scintillation Carbon) in determining the age of coral reefs in the Selayar islands has been carried out. The samples of coral reefs were taken between the tides. Sample preparation was carried out physically and chemically using an acid-base mixture solution: NaOH, H2O2, HClO4 and HCl produced coral samples that looked whiter with weight reduction of up to 1.6%. Carbonate is separated into CO2 by reaction with 10% HCl and absorption with KOH 1 M as K2CO3. Total carbon is determined by the titration method which produces 0.0542 g of total carbon sample. Specific activity of 14C measured by enumeration with LSC is 12.0542 DPM/gC. The age of coral reef samples obtained from sample specific activity data was 1971,728 years

Collaboration network of the authors

40 authors · 115 co-authorship links · showing the 40 most connected

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Co-authorOrganisationJoint articles
Muhammad ZakirAffiliation unknown18
Maming GaffarAffiliation unknown14
Tjodi HarlimAffiliation unknown6
Ahyar AhmadAffiliation unknown6
Muhammad LukmanAffiliation unknown6
Nursiah La NafieAffiliation unknown4
Nicole de VoogdAffiliation unknown4
Ajuk SaparAffiliation unknown3
Nunuk Hariani SoekamtoAffiliation unknown3
Lydia MelawatyAffiliation unknown3
Rakhmad ArmusAffiliation unknown3
Waode RustiahAffiliation unknown3
Paulina TabaAffiliation unknown2
Ismail MarzukiAffiliation unknown2
Tri Aryono HadiAffiliation unknown2
Asma AssaAffiliation unknown2
Andi Tenrisa’naAffiliation unknown2
Syarifuddin LiongAffiliation unknown2
Saefuddin .Affiliation unknown1
Ahmad ZainiAffiliation unknown1
ZarlinaAffiliation unknown1
Syerly KlaraAffiliation unknown1
Surya HariyantoAffiliation unknown1
Balqis ShintarahayuAffiliation unknown1
Faisal MahmuddinAffiliation unknown1
Andi Bukti DjufrieAffiliation unknown1
Haidil AdhaAffiliation unknown1
RachmatanAffiliation unknown1
JuarniAffiliation unknown1
Mirzalina ZaenalAffiliation unknown1
Muhammad FerdiAffiliation unknown1
Muh FerdiAffiliation unknown1
Ahmad FaizalAffiliation unknown1
Shinta WerorilangiAffiliation unknown1
Akbar TahirAffiliation unknown1
M. Farid SamawiAffiliation unknown1
Waode Nur RahmaniahAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unhas.ac.id/index.php/mca/oai, first harvested 5 Nov 2026, last seen 5 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en">DETERMINATION OF KOH EFFICIENCY AS CARBOSORB IN DETERMINING AGE OF CORAL REEF SAMPLES IN SELAYAR ISLANDS THROUGH LSC METHOD (LIQUID SCINTILLATION COUNTING)</dc:title>
	<dc:creator xml:lang="en">Amri, Muhammad</dc:creator>
	<dc:creator xml:lang="en">Noor, Alfian</dc:creator>
	<dc:creator xml:lang="en">Maming, Maming</dc:creator>
	<dc:description xml:lang="en">Research using the method of LSC (Liquid Scintillation Carbon) in determining the age of coral reefs in the Selayar islands has been carried out. The samples of coral reefs were taken between the tides. Sample preparation was carried out physically and chemically using an acid-base mixture solution: NaOH, H2O2, HClO4 and HCl produced coral samples that looked whiter with weight reduction of up to 1.6%. Carbonate is separated into CO2 by reaction with 10% HCl and absorption with KOH 1 M as K2CO3. Total carbon is determined by the titration method which produces 0.0542 g of total carbon sample. Specific activity of 14C measured by enumeration with LSC is 12.0542 DPM/gC. The age of coral reef samples obtained from sample specific activity data was 1971,728 years</dc:description>
	<dc:publisher xml:lang="en">Hasanuddin University</dc:publisher>
	<dc:date>2019-05-20</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unhas.ac.id/index.php/mca/article/view/6569</dc:identifier>
	<dc:source xml:lang="en">Marina Chimica Acta; Vol. 20 No. 1 (2019): Volume 20, No. 1 (2019)</dc:source>
	<dc:source>1411-2132</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.unhas.ac.id/index.php/mca/article/view/6569/3587</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2019 Marina Chimica Acta</dc:rights>
</oai_dc:dc>