Analytical Chemistry. Analytics 1. General Theoretical Foundations. Qualitative Analysis

2022 ◽  
pp. 1-688
Author(s):  
Yu.Ya. Kharitonov
Keyword(s):  
Analytical Chemistry ◽  
Qualitative Analysis ◽  
Theoretical Foundations

scholarly journals Gli Studi Iberici: passato, presente, futuro

2021 ◽  
Author(s):  
Santiago Pérez Isasi
Keyword(s):  
Qualitative Analysis ◽  
Future Development ◽  
Panoramic View ◽  
Academic Field ◽  
Current State ◽  
Academic Barriers ◽  
Iberian Studies ◽  
Different Origins ◽  
Theoretical Foundations

This article intents to offer a panoramic view of the field of Iberian Studies, a fairly young academic field devoted to the study of Iberian literatures and cultures, which has gained some level of recognition and visibility in recent years. I will present its multiple genealogy, its different origins and theoretical foundations in diverse geographical and academic spaces; its current state, with a quantitative and qualitative analysis of its publications and of its level of institutionalization, and  some proposals for its future development, based on the most recent debates and criticisms about this discipline. I will try to show that, without any intention of becoming homogenic or hegemonic, Iberian Studies have promoted new ways of studying Iberian cultures superseding linguistic, political or academic barriers.

scholarly journals DA FAMA AO OSTRACISMO: OITO REAGENTES QUE DEIXARAM O AMBIENTE LABORATORIAL

Química Nova ◽  
2021 ◽  
Author(s):  
Jéssica Paulino ◽  
Júlio Afonso
Keyword(s):  
Analytical Chemistry ◽  
Twentieth Century ◽  
Chemical Analysis ◽  
Qualitative Analysis ◽  
Industrial Applications ◽  
Historical Overview ◽  
Chemistry Teaching ◽  
Historical Aspects ◽  
Laboratory Environment ◽  
Past Experiences

FROM FAME TO OSTRACISM: EIGHT REAGENTS THAT LEFT THE LABORATORY ENVIRONMENT. Historical aspects related to eight reagents that were present in analytical chemistry laboratories in the first decades of the twentieth century are described. They have peculiarities that are based on their curious names or the purposes for which they were intended. Their presence in the laboratory environment reflected their industrial applications and the chemical analysis procedures used at that time. From the mid XXth century, with the migration of qualitative analysis to the chemistry teaching, these reagents have been replaced by others that today serve the same purposes as those previously used. However, many of them still retain their industrial importance. This historical overview emphasizes the importance of the evolution of chemicals and chemical assays for security and efficiency reasons. Learning from past experiences develops a critical spirit and laboratory behavior more committed to occupational hygiene and safety, without losing sight the learning power that qualitative analytical chemistry offers.

scholarly journals Analisis Kualitatif Kandungan Sulfat dalam Aliran Air dan Air Danau di Kawasan Jakabaring Sport City Palembang

2019 ◽  
Vol 2 (2) ◽  
pp. 1-4
Author(s):  
Desti Erviana ◽  
Annisa Widya Budaya ◽  
Silvi Hariani ◽  
Arriya Winda ◽  
Luffiya Yulia Sari
Keyword(s):  
Analytical Chemistry ◽  
Qualitative Analysis ◽  
Water Availability ◽  
Water Samples ◽  
Sulfate Ion ◽  
Sulfate Ions ◽  
Maximum Limit

Analytical chemistry is one branch of chemistry in which there is a way to determine certain ion levels using selective and specific reagents. One type of ion that can be known is the sulfate ion. Sulfate ions are one of the main anions that appear in water naturally. Sulfate is one of the important ions in water availability because of its important effect on humans when it is available in large quantities. The maximum limit of sulfate in water is around 250 mg / L for human-consumed water. This study uses qualitative analysis to determine whether water in the Jakabaring Sport City Palembang region contains sulfate ions or not. Samples taken directly from five different points were reacted with HCl and BaCl2. The results obtained are the five positive water samples containing sulfate ions which are characterized by the formation of white deposits.

Sign in / Sign up

Export Citation Format

Share Document