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All Journal ANTHOR: Education and Learning Journal SAINTI: Majalah Ilmiah Teknologi Industri ANTHOR: Education and Learning Journal
Arizon, Arizon
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STUDI PENETAPAN KADAR ASAM HUMAT DENGAN METODE GRAVIMETRI DAN SPEKTROFOTOMETRI UV-VIS Gusfiyesi, Gusfiyesi; Arizon, Arizon; Efendi, Ressa Yuliza
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 20, No 2 (2023): VOL 20 NO 2 DESEMBER 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v20i2.239

Abstract

The content of humic acid in the soil is important to determine because humic acid plays a very important role in influencing soil fertility, soil and water chemistry. The use of commercial humic acid is one way to improve the condition of degraded soil and minimize the possibility of losing nutrients from organic fertilizer due to leaching or evaporation. The humus extraction process produces commercial humic acid whose content differs according to the region where the humus is sourced. The content of commercial humic acid is determined gravimetrically, but in this study the humic acid content of commercial humic acid was determined by comparing two analytical methods, namely gravimetry and UV-Vis spectrophotometry. In this research, wet extraction of humic acid was carried out using a mixture of 4% Na4P2O7 and 0.1N NaOH. The average value of humic acid content determined using the gravimetric method was 64.9396% and 29.5193% when tested using the UV-Vis spectrophotometric method. Based on the CoA (Certificate of Analysis) the standard value of humic acid is 50%, so it is concluded that for determining humic acid contents by the gravimetric method is better than the UV-Vis spectrophotometric method.
Implementasi Layanan Bimbingan Karir Dalam Menetapkan Jurusan di SMA Muhammadiyah 6 Palembang Kusuma, Arian; Ferdiansyah, M; Arizon, Arizon
ANTHOR: Education and Learning Journal Vol 1 No 3 (2022): Vol 1 No 3. Page: 134 - 184
Publisher : Institut Teknologi Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/anthor.v1i3.28

Abstract

This research has a goal, namely to encourage or help students determine the direction of cross-interest subject groups and subject-depth groups to be pursued according to the talents and interests of students so that students can determine their career choices and further study options. The method used in this research is the descriptive qualitative method. The sources of data obtained in this study are interviews, and documents on career guidance and counseling services in the guidance and counseling room for students at Muhammadiyah 6 Palembang High School for the 2021/2022 academic year in Palembang City. Data collection in this study used documentation, interviews, and observations. The data analysis technique used is an interview and observation technique. The results of research conducted by researchers regarding the implementation of career guidance services in determining majors at SMA Muhammadiyah 6 Palembang show good and enthusiastic results. Most of the students who were given this service said they felt helped in determining their further education careers and were motivated to achieve their goals. Likewise BK teachers provide grateful services because with this research students can further explore knowledge about further education, especially for students who are usually passive to be active to help students in determining their respective further education decisions.
Implementasi Layanan Bimbingan Karir Dalam Menetapkan Jurusan di SMA Muhammadiyah 6 Palembang Kusuma, Arian; Ferdiansyah, M; Arizon, Arizon
ANTHOR: Education and Learning Journal Vol 1 No 3 (2022): Vol 1 No 3. Page: 134 - 184
Publisher : Institut Teknologi Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (169.496 KB) | DOI: 10.31004/anthor.v1i3.28

Abstract

This research has a goal, namely to encourage or help students determine the direction of cross-interest subject groups and subject-depth groups to be pursued according to the talents and interests of students so that students can determine their career choices and further study options. The method used in this research is the descriptive qualitative method. The sources of data obtained in this study are interviews, and documents on career guidance and counseling services in the guidance and counseling room for students at Muhammadiyah 6 Palembang High School for the 2021/2022 academic year in Palembang City. Data collection in this study used documentation, interviews, and observations. The data analysis technique used is an interview and observation technique. The results of research conducted by researchers regarding the implementation of career guidance services in determining majors at SMA Muhammadiyah 6 Palembang show good and enthusiastic results. Most of the students who were given this service said they felt helped in determining their further education careers and were motivated to achieve their goals. Likewise BK teachers provide grateful services because with this research students can further explore knowledge about further education, especially for students who are usually passive to be active to help students in determining their respective further education decisions.
Co-Authors Efendi, Ressa Yuliza FERDIANSYAH, M Gusfiyesi Gusfiyesi, Gusfiyesi Kusuma, Arian