Editing Gravimetric analysis (section)

{{Short description|Quantitative determination of a chemical species based on its mass}}
{{For|the measurements of gravitational fields|Gravimetry}}
{{Infobox chemical analysis
| name = Gravimetric analysis
| image = Analytical balance mettler ae-260.jpg
| caption =Analytical balance
| acronym =
| classification =Gravimetric
| analytes = [[Solid]]s<br>[[Liquid]]s
| manufacturers =
| related = [[Precipitation (chemistry)|Precipitation]]<br>[[Titration]]
| hyphenated =
}}

'''Gravimetric analysis''' describes a set of methods used in [[analytical chemistry]] for the quantitative determination of an [[analyte]] (the ion being analyzed) based on its mass. The principle of this type of analysis is that once an ion's mass has been determined as a unique compound, that known measurement can then be used to determine the same analyte's mass in a mixture, as long as the relative quantities of the other constituents are known.<ref>{{Cite web|url=https://www.wiredchemist.com/|title=Gravimetric Analysis|last=Yoder|first=Claude|date=January 8, 2017|website=wiredchemist.com|access-date=January 8, 2017|archive-date=January 7, 2017|archive-url=https://web.archive.org/web/20170107195835/http://www.wiredchemist.com/|url-status=live}}</ref>

The four main types of this method of analysis are ''precipitation'', ''volatilization'', ''electro-analytical'' and ''miscellaneous physical method''.<ref name=":0">{{Cite book|title=Fundamentals of Analytical Chemistry|last1=Skoog|first1=Douglas|last2=West|first2=Douglas M|last3=Holler|first3=F James|publisher=Saunders College Publishing Harcourt Brace|year=1996|edition=7th|location=Fort Worth|pages=71–96|chapter=5: Gravimetric Analysis|lccn=95-067683}}</ref> The methods involve changing the phase of the analyte to separate it in its pure form from the original mixture and are quantitative measurements.