Spectrometry senses more than a small difference.
Egholm
M
M
D004247:DNA / Q000032:analysis* / Q000235:genetics; D017931:DNA Primers / Q000032:analysis; D005784:Gene Amplification; D009693:Nucleic Acid Hybridization; D015341:Nucleic Acid Probes / Q000032:analysis*; D009696:Nucleic Acids / Q000032:analysis* / Q000235:genetics; D010455:Peptides / Q000032:analysis* / Q000235:genetics; D011110:Polymorphism, Genetic; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*
D017931:DNA Primers; D015341:Nucleic Acid Probes; D009696:Nucleic Acids; D010455:Peptides; D004247:DNA