KETEPATAN HASIL DAN VARIASI WAKTU PENDIDIHAN PEMERIKSAAN ZAT ORGANIK
Journal Title: Medical Laboratory Technology Journal - Year 2016, Vol 2, Issue 2
Abstract
The principle of organic substances determination in water samples is oxidized by an excess amount of KMnO4, then it is reduced excess amount of oxalic acid, the excess of oxalic acid is titrated back with KMnO4. Based on the procedures in ISO 06-6989.22-2004, a length of boiling time for organic substances determination in water samples is for 10 minutes. This study aimed to determine the effect of boiling time length to the accuracy of the organic substances determination result in water samples. This study was true experiment study with comparative study design. Samples were organic substances, specifically oxalic acid in distilled water in a concentration of 54 mg/L, which was examined for the organic substances level with a boiling time of 5, 10 and 15 minutes. The result on each boiling time length consecutively were 52,8 mg/L; 54,5 mg/L; dan 55,1 mg/L. The conclusion of the study was there was effect of boiling time length to the accuracy of organic substances determination result in water samples with the significance value of 0.002 (<0,05). It is recommended to continue the study using a direct sample from a field with the addition of sample matrix
Authors and Affiliations
Keywords
Related Articles
- EP ID EP414905
- DOI -
- Views 145
- Downloads 0
HUBUNGAN DOSIS TEPUNG GEMBILI (Dioscorea esculenta) DENGAN TINGKAT EKSPRESI ENZIM Ampk-α2 PADA MODEL TIKUS DIABETES MELITUS
Alternative methods of controlling glucose levels in patients with diabetes is by type of food, either by utilizing yam flour. At the flour contained inulin and resistant starch that can activate the enzyme AMPK-α2. Acti...
RISIKO INFEKSI KECACINGAN PADA PENAMBANG INTAN TRADISIONAL DI KECAMATAN CEMPAKA KOTA BANJARBARU
The biggest potential danger from mining activities is a worm infection. Worm infection is often found in the community often considered harmless. If this condition is left unchecked, it will lead to malnutrition, decrea...
Pengaruh Tanaman Genjer (Limnocharis flava) Terhadap Penurunan Biological Oxygen Demand (BOD) Limbah Industri Karet
The levels of Biological Oxygen Demand (BOD) in the waste can be reduced by utilizing water plants such as Limnocharis flava as phytoremediation. This study aims to determine the influence of the many clumps of Limnochar...
PENGARUH LAMA PENYIMPANAN URINE PADA SUHU KAMAR TERHADAP JUMLAH LEUKOSIT STUDI PADA PENDERITA DIABETES MELITUS
Examination of urine leukocyte count usually use random urine samples and urine examination is performed while urine is still fresh because formed elements in urine begins to be disintegrated within 2 hours. The purpose...
PERBEDAAN JUMLAH TROMBOSIT PADA DARAH EDTA YANG SEGERA DIPERIKSA DAN PENUNDAAN SELAMA 1 JAM DI LABORATORIUM RSJ GRHASIA YOGYAKARTA
Pre-analytical phases is a very important stage and need to be considered properly. Pre-analytical phases of which is the process of blood sampling, sample delivery, the inclusion of the type of inspection, sample prepar...