Validation in Chemical Measurement

AvPaul De Bièvre,Helmut Günzler

Inbunden, Engelska, 2004

1 090 kr

Beställningsvara. Skickas inom 10-15 vardagar. Fri frakt över 249 kr.

Beskrivning

Validationofmeasurementmethodshasbeenusedforavery ciated measurement uncertainty? The answer must be: no. longtimeinchemistry. Itismostlybasedontheexamination Therecanneverbeamechanismorrecipeforproducing - of a measurement procedure for its characteristics such as tomatically 'valid' results because one can never eliminate precision, accuracy, selectivity, sensitivity, repeatability, re- theskills,theroleandtheresponsibilityoftheanalyst. producibility,detectionlimit,quanti?cationlimitandmore. ISO 9000:2000, item 3. 8. 5 de?nes validation as 'con?r- When focussing on quality comparability and reliability mation by examination and provision of objective evidence in chemical measurement, the ?elds of interest to this Jour- that the requirements for an intended use are ful?lled'. The nal, one stumbles into various interpretations of the term revised edition of the VIM ('VIM3'), is likely to ?ne-tune validation. It is one more example of a term which is used thisde?nitionoftheconcept'validation'tobe'con?rmation sometimes very consistently, sometimes very loosely or in- through examination of a given item and provision of - deed ambiguously.Since the term is very common in the jective evidence that it ful?lls the requirements for a stated chemical community, it is important that its meaning be intendeduse'. nd clear. Turning to the 2 edition of the International Vo- Lookingatsimplepractice, manypeoplearelookingfor cabulary of Basic and General terms in Metrology (VIM) aformaldecisionthatagivenmeasurementmethod automat- (1993), surprisingly we do not ?nd a de?nition. Webster's ically gives them 'valid' i. e. reliable results. One wonders Dictionary of the English language (1992) tells us that val- what this has to do with 'stated intended use'. Reliab- idation is 'making or being made valid'. Obviously valida- ity clearly is a property of a measurement result.

Produktinformation

Utforska kategorier

Recensioner i media

Innehållsförteckning

Hoppa över listan

Du kanske också är intresserad av

Wilhelm Fresenius, Helmut Günzler, Walter Huber, Ingo Lüderwald, Günter Tölg, Hermann Wisser - Analytiker-Taschenbuch. Band 6, Inbunden

Analytiker-Taschenbuch. Band 6

Wilhelm Fresenius, Helmut Günzler, Walter Huber, Ingo Lüderwald, Günter Tölg, Hermann Wisser

Inbunden, 1987

1 773 kr

Helmut Günzler, A. Müfit Bahadir, Rolf Borsdorf, Klaus Danzer, Wilhelm Fresenius, Rudolf Galensa, Walter Huber, Ingo Lüderwald, Georg Schwedt, Günter Tölg, Hermann Wisser - Analytiker-Taschenbuch, Häftad

Analytiker-Taschenbuch

Helmut Günzler, A. Müfit Bahadir, Rolf Borsdorf, Klaus Danzer, Wilhelm Fresenius, Rudolf Galensa, Walter Huber, Ingo Lüderwald, Georg Schwedt, Günter Tölg, Hermann Wisser

Häftad, 2011

614 kr

Wilhelm Fresenius, Helmut Günzler, Walter Huber, Hans Kelker, Ingo Lüderwald, Günter Tölg, Hermann Wisser - Analytiker-Taschenbuch, Häftad

Analytiker-Taschenbuch

Wilhelm Fresenius, Helmut Günzler, Walter Huber, Hans Kelker, Ingo Lüderwald, Günter Tölg, Hermann Wisser

Häftad, 2011

580 kr