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  3. Chemistry; Chem Sci/Eng

field blank value

20:44 May 11, 2017
English to Polish translations [PRO]
Science - Chemistry; Chem Sci/Eng
English term or phrase: field blank value
termin pochodzi z normy dotyczącej oznaczania PCDD/PCDF. Definicja brzmi tak:
value determined by a blank sample covering a specific procedure to ensure that no significant contamination has occurred during all steps of the measurement and to check that the operator can achieve a quantification level adapted to the task

Pojawia się jeszcze w następujących kontekstach:
If the calculated value measured is less than the preceding field blank value, the reported result is defined as less or equal to the blank.

When the analytical results have been examined the sampling report shall state whether:
the field blank was less than 10 % of the emission limit value;
the calculated value was greater than the field blank value;

Będę bardzo wdzięczna za pomoc! :)
drozd_joanna
Poland
Local time: 16:57


Summary of answers provided
3 +1wartość (oznaczenia) dla polowej próbki ślepej
Jakub Kościelniak
2wartość terenowej próby ślepej
Jacek Kloskowski


  

Answers


2 hrs   confidence: Answerer confidence 2/5Answerer confidence 2/5
wartość terenowej próby ślepej


Explanation:
A field blank value for a targeted compound is defined as its average concentration obtained from the analysis of field blank filters (n = 16), which underwent all the handling procedures that a real filter sample undergoes, including the sample transport and storage, except for air sampling.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4834413/

Field blanks are aliquots of analyte-free water or solvents brought to the field in sealed containers and transported back to the laboratory with the sample containers. Trip blanks and equipment blanks are two specific types of field blanks.

http://www.americananalytics.com/glossary.html

Blank: A substance that does not contain the analytes of interest and is subjected to the usual
measurement process. Blanks can be further classified as method blanks, matrix blanks, reagent
blanks, instrument blanks, and field blanks. See also FMB, Matrix Blank, MBK, MBKL, and MBKC and
Section 3.2.1

https://www.fda.gov/downloads/Food/FoodScienceResearch/Labor...

e) terenowe próbki ślepe – przygotować zgodnie
z odpowiednią normą, jeżeli metoda nie określa próbki
ślepej, terenową próbkę ślepą należy przygotować tak,
by spełnione były następujące wymagania dotyczące
weryfikacji i walidacji:
- wartość terenowej próbki ślepej nie powinna być
odejmowana od wartości zmierzonej
- wartość powinna być mniejsza niż określony procent
wartości zmierzonej lub granicznej, z którą wynik
pomiaru ma być porównany

http://www.psle.pl/assets/files/pliki/W_Cwiakalski.pdf

Wykonanie terenowych prób ślepych w celu monitorowania źródeł zanieczyszczeń próbek

http://www.gbcpolska.pl/sympozja/pdfy/slesin2009_bulska_pasl...



Jacek Kloskowski
United States
Local time: 10:57
Native speaker of: Native in PolishPolish, Native in EnglishEnglish
PRO pts in category: 44
Login to enter a peer comment (or grade)

17 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
wartość (oznaczenia) dla polowej próbki ślepej


Explanation:
Tu z kolei wydaje mi się, że chodzi o wartość dla polowej próbki ślepej, czyli przechodzącej takie same etapy, co właściwa próbka środowiskowa do oznaczenia, ale nie zawierającej analitu.

http://www.gbcpolska.pl/sympozja/pdfy/Slesin_2016_Paslawski....

Jakub Kościelniak
Poland
Local time: 16:57
Specializes in field
Native speaker of: Polish
PRO pts in category: 684

Peer comments on this answer (and responses from the answerer)
agree  Błażej Rychlik
2 hrs
  -> Dziękuję!
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