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11.504  Articles
1 of 1.151 pages  |  10  records  |  more records»
The research about validation method of determination of Cd (II) in NPK fertilizer by Flame Atomic Absorption Spectrophotometry at the Quality Control Laboratory, PT. Pupuk Kaltim has been done. Determination of Cd (II) was done by referring to the Indone... see more

The research about adsorption concentration of iron, manganese, pH, COD, BOD and TSS at well water using baggase as adsorbent material. The content of iron and manganese was determined using AAS; pH using pH meter; COD and BOD using titration method; TSS ... see more
Baggase |  KOH |  iron |  manganese |  pH |  COD |  BOD |  TSS
Penelitian tentang isolasi selulosa dari eceng gondok (Eichhornia crassipes) melalui proses ekstraksi sokletasi, delignifikasi dan bleaching, dilanjutkan dengan sintesis asetilasi dengan memasukkan gugus asetat ke dalam gugus fungsi selulosa hasil isolasi... see more

ABSTRACT                Synthesis of silica gel from chitosan-modified rice husk ash and its application as an adsorbent of methylene blue have been studied. The stages of this res... see more

The study about the comparison of analytical performance of the determination of Pb metal ions using Atomic Absorption Spectrophotometer in various laboratories in samarinda has been conducted. The validated methods are linearity, detection limits, quanti... see more

Validation method of ammonia (NH3) determination in ambient air with the ion-selective electrode (ESI) method has been carried out. The purpose of this study is to determine linearity, accuracy, precision, method detection limits, and selectivity. The per... see more

The research about identification of PAF, NAF and uncertain rock using NTAPP method in the PT. Trubaindo Coal Mining has been done. This research was conducted as an effort to control the potential for the formation of acid mine drainage, with identifying... see more

The research about utilization of nitrogen gas as a carrier gas in the determination of Hg ions by using Cold Vapor-Atomic Absorption Spectrophotometer (CV-AAS) method has been conducted. To optimize the measurement results, several parameters that affect... see more

Trace analysis of Chromium(VI) ions using acid alumina resin as a filler material column in preconcentration system by off-line method has been carried out. Alumina resin was activated with H2SO4 at pH 1 before being filled to the column. This research sh... see more

1 of 1.151 pages  |  10  records  |  more records»