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Qualitative Analysis

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Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
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Related Experiment Video

Updated: Sep 23, 2025

RBDT: A Computerized Task System based in Transposition for the Continuous Analysis of Relational Behavior Dynamics in Humans

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Published on: July 17, 2021

Qualitative properties and relations.

¹Università della Svizzera italiana, Via Giuseppe Buffi 13, 6900 Lugano, Switzerland.

Philosophical Studies

|May 16, 2022

Summary

This study explores two concepts of qualitativeness for intensional entities. It proposes a new definition of strict qualitativeness, avoiding presuppositions about properties and relations, and distinguishing grades of qualitative discriminability.

Area of Science:

Philosophy of Mind
Metaphysics
Logic

Background:

The paper addresses the philosophical concepts of qualitativeness as applied to intensional entities.
It examines traditional understandings of pure qualitativeness and recent proposals for strict qualitativeness.

Purpose of the Study:

To propose and defend an account of pure qualitativeness.
To introduce a revised definition of strict qualitativeness that avoids presupposing fine-grained properties.
To explore the ontological presuppositions of these concepts.

Main Methods:

Analysis of traditional and contemporary philosophical accounts of qualitativeness.
Development of a new definition for strict qualitativeness based on 'perspicuous denotation'.
Application of both qualitativeness concepts to differentiate levels of qualitative discriminability.

Keywords:

Metaphysical perspicuity Properties Qualitative indiscernibility Qualitativeness Relations

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Main Results:

An account of pure qualitativeness is presented, defined by the non-involvement of particulars.
A novel definition of strict qualitativeness is proposed, independent of fine-grained property theories.
The paper distinguishes between different grades of qualitative discriminability using these two concepts.

Conclusions:

The proposed account of pure qualitativeness clarifies its ontological commitments.
The revised definition of strict qualitativeness offers a more robust framework for analyzing intensional entities.
The study provides tools for a nuanced understanding of qualitative distinctions.