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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

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

Papers overview

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Review
2012
Review
2012
Computational prediction of 1H and 13C chemical shifts: a useful tool for natural product, mechanistic, and synthetic organic chemistry.
Highly Cited
2009
Highly Cited
2009
[(NHC)Au(I)]-catalyzed acid-free alkyne hydration at part-per-million catalyst loadings.
A highly efficient [(NHC)Au(I)]-based (NHC = N-heterocyclic carbene) catalytic system for the hydration of an array of alkynes… 
Highly Cited
2006
Highly Cited
2006
Performance evaluation of a hybrid linear ion trap/orbitrap mass spectrometer.
Design and performance of a novel hybrid mass spectrometer is described. It couples a linear ion trap mass spectrometer to an… 
Highly Cited
2003
Highly Cited
2003
Management of the Clinically Inapparent Adrenal Mass (Incidentaloma)
The adrenals are triangular glands that sit atop each kidney. They influence or regulate the body's metabolism, salt and water… 
Highly Cited
2002
Highly Cited
2002
Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts
Gas sensors have been fabricated using the single-crystalline SnO2 nanobelts. Electrical characterization showed that the… 
Highly Cited
2002
Highly Cited
2002
Synthetic applications of 1,3-dipolar cycloaddition chemistry toward heterocycles and natural products
Nitrones (Jason N. Martin and Raymond C. F. Jones). Nitronates (Scott E. Denmark and Jeromy J. Cottell). Azomethine Ylides (L. M… 
Highly Cited
2001
Highly Cited
2001
Gold Nanoparticle-Based Sensing of “Spectroscopically Silent” Heavy Metal Ions
A simple colorimetric technique for the detection of small concentrations of aqueous heavy metal ions, including toxic metals… 
Review
1995
Review
1995
Quantitation of HIV-1 RNA in Plasma Predicts Outcome after Seroconversion
The course of infection with human immunodeficiency virus type 1 (HIV-1) varies considerably. Although the median interval… 
Highly Cited
1991
Highly Cited
1991
Relationship between nuclear magnetic resonance chemical shift and protein secondary structure.
Highly Cited
1974
Highly Cited
1974
Effect of dietary selenium on erythrocyte and liver glutathione peroxidase in the rat.
Experiments were conducted with male rats to quantitate the relation ship between dietary selenium (Se) intake and the amount of… 
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