Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal Eksergi: Chemical Engineering Journal
Wakhid Khoirul Umar
UPN "Veteran" Yogyakarta
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Verification of the Walkley Black Method Test for Determination of Organic Carbon Elements in Palm Oil Empty Fruit Bunch Waste Fertilizer Wakhid Khoirul Umar; Fandika Agustiyar; Aulia Rahma
Eksergi Vol 19, No 3 (2022)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v19i3.7267

Abstract

Verification of the organic carbon method on organic fertilizer from Palm Oil Empty Fruit Bunches (TKKS) waste using a UV-Vis Spectrophotometer has been carried out. The determination of this OPEFB fertilizer refers to the AOAC (2000) with the Walkley Black method. The results of the organic carbon test on OPEFB fertilizer show the correlation coefficient (r) value obtained is 1.0000, and the % relative standard deviation (RSD) value of 0.4022% means that the value is below 2/3 CV Horwitz of 4.7230. accuracy with a value of 106.99%. The method limit value (LOD) is 2.4531, and the quantization limit value (LOQ) is 8.1769. The instrument limit value (LOD) is 2.4990, and the quantification limit value (LOQ) is 8.3299; the test results indicate that it has complied with the conditions with acceptance. The test results for determining organic carbon in OPEFB fertilizer using the Walkley Black method with UV-Vis Spectrophotometer showed valid results, so the method could be used.
Co-Authors Aulia Rahma Fandika Agustiyar