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part per million (ppm)

Known as: ppms, Part per Million, Per Million 
A unit of proportion equal to 10E-6.
National Institutes of Health

Related topics

Related topics

2 relations
Clinical Data Interchange Standards Consortium TerminologyICH Unit of Measure Terminology

Papers overview

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Highly Cited
2009
Highly Cited
2009
Low Cost and Manufacturable Complete Microtas for Detecting Bacteria †
In this paper, we present a fully integrated lab-on-a-chip and associated instrument for the detection of bacteria from liquid… 
Highly Cited
1997
Highly Cited
1997
Large Variations in 13Cα Chemical Shift Anisotropy in Proteins Correlate with Secondary Structure
In recent years, there has been a renewed interest in the relation between protein structure and chemical shift.1-8 Most clear… 
Highly Cited
1990
Highly Cited
1990
Improved Kennedy-Thorndike experiment to test special relativity.
We have carried out a modern version of the Kennedy-Thorndike experiment by searching for sidereal variations between the… 
Highly Cited
1986
Highly Cited
1986
Binding of N-linked bovine fetuin glycopeptides to isolated rabbit hepatocytes: Gal/GalNAc hepatic lectin discrimination between Gal beta(1,4)GlcNAc and Gal beta(1,3)GlcNAc in a triantennary…
Glycopeptides were isolated from bovine fetuin after digestion with Pronase, aminopeptidase M, and carboxypeptidase Y. The… 
Highly Cited
1982
Highly Cited
1982
The elucidation of solvent exchange mechanisms by high-pressure NMR studies
Abstract 
Highly Cited
1975
Highly Cited
1975
A proton nuclear magnetic resonance study of the quaternary structure of human homoglobins in water.
Proton nuclear magnetic resonance spectra of human hemoglobins in water reveal several exchangeable protons which are indicators… 
Highly Cited
1971
Highly Cited
1971
Nuclear magnetic resonance spectroscopy. Carbon-13 chemical shifts of methycyclopentanes, cyclopentanols, and cyclopentyl acetates
The ^(13)C chemical shifts of the title compounds have been determined by high-resolution nmr spectroscopy with the aid of proton… 
Highly Cited
1971
Highly Cited
1971
Anomeric structure of globoside and ceramide grihexoside of human erythrocytes and hamster fibroblasts.
Abstract The terminal galactosyl residue of ceramide trihexoside of human erythrocytes and BHK fibroblasts and that of the… 
Highly Cited
1971
Highly Cited
1971
A high resolution electron spectrometer for use in transmission scanning electron microscopy.
The design and construction of a double focusing uniform field magnetic electron spectrometer are described. The pole pieces of… 
Highly Cited
1968
Highly Cited
1968
Studies of inter- and intramolecular interaction in mononucleotides by proton magnetic resonance.
The interaction and conformation of 5’, 3’-, and 2’-nucleoside monophosphates in aqueous solutions have been studied mainly by… 
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