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16.306  Articles
1 of 1.632 pages  |  10  records  |  more records»
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

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

The modification of resin Ca - Alginate with rice straw ash as a column filler material for preconcentration step of Mn(II) ion. Has been done Preconcentration method was used by off-line method, water samples were passed through the column and eluted wit... see more

Kiai As'ad Syamsul Arifin is one of the scholars of the archipelago who is particularly well known for his struggles and great ideas. He is a descendant of Madurese who was born in Mecca and lives in Situbondo. During his lifetime, he has a part in strugg... see more

Tourism is an interrelated system that includes tourists and services provided, religious tourism found in the Situbondo district, namely the Tomb of K.H.R As’ad Syamsul Arifin. The development of religious tourism will certainly have an impact on the soc... 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 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

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


1 of 1.632 pages  |  10  records  |  more records»