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All Journal Jurnal Sains Dasar JURNAL ILMIAH OBSGIN : Jurnal Ilmiah Ilmu Kebidanan & Kandungan
Wahyuni, Nita Tri
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Biochemistry, Genetics & Molecular Biology Education Health Professions Medicine & Pharmacology Nursing Public Health

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KAJIAN ADSORPSI ION LOGAM Cr(VI) OLEH ADSORBEN KOMBINASI ARANG AKTIF SEKAM PADI DAN ZEOLIT MENGGUNAKAN METODE SOLID-PHASE SPECTROPHOTOMETRY (SPS) Saputro, Sulistyo; Masykuri, Mohammad; Mahardiani, Lina; Mulyani, Bhakti; Wahyuni, Nita Tri
Jurnal Sains Dasar Vol 5, No 2 (2016): October 2016
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.242 KB) | DOI: 10.21831/jsd.v5i2.13718

Abstract

Penelitian ini bertujuan untuk memanfaatkan kombinasi arang aktif sekam padi dan zeolit sebagai adsorben dalam mengadsorpsi ion logam Cr(VI) dan mempelajari pengaruh komposisi adsorben kombinasi arang aktif sekam padi dan zeolit dalam mengadsorpsi ion logam Cr(VI), serta sensitivitas metode solid-phase spectrophotometry (SPS) untuk menentukan penurunan kadar ion logam Cr(VI) dalam skala μg/L. Arang aktif sekam padi yang digunakan diperoleh melalui proses aktivasi dengan perendaman dalam larutan ZnCl2 10% sedangkan zeolit menggunakan larutan H2SO4 10%. Pengontakan adsorben dengan ion logam Cr(VI) dilakukan dengan variasi komposisi adsorben arang aktif  sekam padi dan zeolit  1:1, 1:2, 1:3, dan 2:1. Analisis kadar Cr(VI) dilakukan menggunakan metode solid-phase spectrophotometry (SPS). Karakterisasi arang aktif sekam padi dan zeolit dilakukan menggunakan FTIR. Hasil penelitian ini menunjukkan bahwa: (1) kombinasi arang aktif sekam padi dan zeolit dapat digunakan sebagai adsorben dalam mengadsorpsi ion logam Cr(VI) dengan kapasitas adsorpsi 0,28 µg/g; (2) komposisi optimum adsorben adalah 1:2 dengan persentase penyerapan sebesar 40,99%; (3) solid-phase spectrophotometry (SPS) merupakan metode yang sensitif untuk analisis penurunan kadar  ion Cr(VI) dalam tingkat µg/L dengan Limit of Detection (LOD) sebesar 0,021 µg/L. Kata kunci : adsorpsi, Cr(VI), arang aktif sekam padi, zeolit, solid-phase spectrophotometry Abstract This study aims to study the use of activated rice husk charcoal and zeolite as combination adsorbents to adsorb Cr(VI) metal ions; the effect of the combination adsorbents of activated rice husk charcoal and zeolite’s compositions to adsorb Cr(VI) metal ions; and the sensitivity of solid-phase spectrophotometry (SPS) as a method to determine the reduced levels of Cr(VI) metal ions in the level of 15μ" g/L. The activated rice husk charcoal used were obtained through the activation process by soaking in a solution of ZnCl2 10% while the zeolite with a solution of H2SO4 10%. The contacting process of the adsorbents with Cr(VI) metal ions was done by varying the compositions of the activated rice husk charcoal and zeolite adsorbent, 1:1, 1:2, 1:3, and 2:1. The data analysis of the Cr(VI) level used solid-phase spectrophotometry (SPS) method. Characterization of activated rice husk charcoal and zeolite used FTIR. The results showed that: (1) a combination of activated rice husk charcoal and zeolite can be used as adsorbent to adsorb Cr(VI) metal ions with the adsorption capacity was 0,28 15μ" g/g; (2) the optimum composition of adsorbents was 1:2 with the percentage of absorption was 40,99%; (3) solid-phase spectrophotometry (SPS) is a sensitive method to determine the reduced levels of Cr(VI) in the level of 15μ" g/L with the limit of detection (LOD) was 0,021 15μ" g/L. Keywords: adsorption, Cr(VI),  activated  rice husk charcoal,  zeolite, solid-phase spectrophotometry
TINGKAT PENGETAHUAN DAN SIKAP WANITA USIA SUBUR DENGAN MINAT UNTUK MELAKUKAN VAKSINASI HPV (HUMAN PAPILLOMA VIRUS) Wahyuni, Nita Tri; Kumala, Anes Patria
JURNAL ILMIAH OBSGIN : Jurnal Ilmiah Ilmu Kebidanan & Kandungan P-ISSN : 1979-3340 e-ISSN : 2685-7987 Vol 16 No 1 (2024): MARET
Publisher : NHM PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36089/job.v16i1.1799

Abstract

One of the causes of death that is quite high in the world is cancer. Cervical cancer or cervical cancer is a malignancy that occurs from the cells of the cervix. Cervical cancer is one of the gynecological cancers that can be prevented by making early detection efforts, namely a fairly high prevalence in the community, long disease development, and specific examination techniques have been found, and there are effective treatments. The number of cancer patients in the world in 2020 reached 19.3 million cases, the most suffered were breast cancer as much as 11.7 percent, then lung cancer 11.4 percent, colon or rectal cancer 10 percent and cervical cancer 7.3 percent. The number of cervical cancer patients in Indonesia is 36,633 cases, the second largest number after breast cancer. The main cause of cervical cancer is not known with certainty but more often due to Human Papilloma Virus (HPV) infection. The type of research used in this study is descriptive analytic with Cross Sectional design which aims to determine the relationship between knowledge and attitudes with interest in HPV vaccination in the Susukan Area, East Jakarta. The results showed that the level of knowledge and attitude towards HPV vaccination was quite good
Dampak Penggunaan Gadget Terhadap Perkembangan Anak Usia Pra Sekolah di TK Bina Putera Kecamatan Ciracas Jakarta Timur Kumala, Anes Patria; Wahyuni, Nita Tri
JURNAL ILMIAH OBSGIN : Jurnal Ilmiah Ilmu Kebidanan & Kandungan P-ISSN : 1979-3340 e-ISSN : 2685-7987 Vol 16 No 2 (2024): JUNI
Publisher : NHM PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36089/job.v16i2.2273

Abstract

One of the impacts that occurs when young children are addicted to gadgets can be disruption to the child's growth and development. The World Health Organization (WHO) reports that 5-25% of preschool children suffer from developmental disorders. Gadgets make it easier for children to get access to information media and technology, so that children become lazy about moving and doing activities. They prefer to sit and enjoy the world inside the gadget. A situation like this will certainly affect the child's development, both in terms of physical, motor, psychological and social aspects of the child. Aimed study to determine the relationship between gadget use and development in pre-school children. The research design used was quantitative analytical observational with a cross sectional approach. The population used in this research was the students of Bina Putera Kindergarten, East Jakarta, totaling 42 children, sampling was carried out using total sampling. The instruments used in this research were the gadget intensity measurement questionnaire and the KPSP questionnaire. The statistical test in this research is chi-square. As a result of the research that has been carried out, it is known that 23 respondents (54.8%) had medium category gadget use, causing the development of the doubtful category for 25 respondents (59.6%). Data obtained from statistical results using the chi square test shows p-value = (0.016) < (0.05). There is a relationship between the use of gadgets and the development of pre-school children at Bina Putera Kindergarten, East Jakarta in 2024.
PERBEDAAN USIA, PENDIDIKAN DAN PEKERJAAN IBU YANG MEMILIKI ANAK BALITA DENGAN PERILAKU KUNJUNGAN IBU KE POSYANDU DI RW 17 DESA CILEUNGSI KECAMATAN CILEUNGSI KABUPATEN BOGOR Wahyuni, Nita Tri; Herselowati, Herselowati; Pawestri, Nui; Septiani, Yuhana; Puspitasari, Risma Ananda
JURNAL ILMIAH OBSGIN : Jurnal Ilmiah Ilmu Kebidanan & Kandungan P-ISSN : 1979-3340 e-ISSN : 2685-7987 Vol 16 No 4 (2024): DESEMBER
Publisher : NHM PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36089/job.v16i4.2527

Abstract

Posyandu is a public health service effort that has the main priority of accelerating the reduction in maternal and child mortality rates. A visit from a toddler's mother is very important for toddlers. There are several impacts experienced by toddlers if they are not active in posyandu activities. The aim of this research is the difference in age, education and occupation of mothers who have children under five with the behavior of mothers visiting posyandu in RW 17 Cileungsi Village, Cileungsi District, Bogor Regency in 2024. This research is a quantitative analytical research using a cross sectional study time approach carried out in RW 17 Cileungsi Village, Cileungsi District, Bogor Regency in December 2024. The sample in this study was 60 respondents. The research instrument uses primary data, namely interviews and questionnaires. The results of the research show that there are differences in education and employment of mothers who have children under five and visits to the posyandu, respectively, the chisquare test value is p value = 0.012, p value = 0.005 (p < 0.05). On the other hand, there was no difference in the age of mothers who had toddlers and visits to posyandu, with a chi-square test value of p value = 0.871 (p > 0.05). This shows that increasing awareness through education and work is very important to encourage mothers to take toddlers to posyandu
Co-Authors Desi Wulandari1 dr. H.E. Kusdinar3 Herselowati2 Kumala, Anes Patria Lina Mahardiani Mohammad Masykuri Mulyani, Bhakti Nui Pawestri Puspitasari, Risma Ananda Septiani, Yuhana Sulistyo Saputro