+ {'label': 'Berkeley Lab - iSTD Positive', 'value': 'lysine (unlabeled)=147.1128;lysine (U - 13C, 15N)=155.127;arginine (unlabeled)=175.11895;arginine (U - 13C, 15N)=185.12722;cystine (unlabeled)=241.03112;cystine (U - 13C, 15N)=249.04532;aspartic acid (unlabeled)=134.04478;aspartic acid (U - 13C, 15N)=139.05523;glutamic acid (unlabeled)=148.06043;glutamic acid (U - 13C, 15N)=154.07424;histidine (unlabeled)=156.07675;histidine (U - 13C, 15N)=165.08798;trehalose (unlabeled)=343.12348;trehalose (U - 13C)=355.16374;asparagine (unlabeled)=133.06076;asparagine (U - 13C, 15N)=139.06825;glutamine (unlabeled)=147.07641;glutamine (U - 13C, 15N)=154.08726;serine (unlabeled)=106.04986;serine (U - 13C, 15N)=110.05696;glycine (unlabeled)=76.0393;glycine (U - 13C, 15N)=79.04304;threonine (unlabeled)=120.06551;threonine (U - 13C, 15N)=125.07597;alanine (unlabeled)=90.05495;alanine (U - 13C, 15N)=94.06205;tyrosine (unlabeled)=182.08116;tyrosine (U - 13C, 15N)=192.10839;valine (unlabeled)=118.08625;valine (U - 13C, 15N)=124.10006;proline (unlabeled)=116.0706;proline (U - 13C, 15N)=122.08441;methionine (unlabeled)=150.05832;methionine (U - 13C, 15N)=156.07213;tryptophan (unlabeled)=205.09715;tryptophan (U - 13C, 15N)=218.12812;isoleucine (unlabeled)=132.1019;isoleucine (U - 13C, 15N)=139.11906;mannitol (unlabeled)=181.07066;mannitol (U - 13C)=189.10644;leucine (unlabeled)=132.1019;leucine (U - 13C, 15N)=139.11906;phenylalanine (unlabeled)=166.08625;phenylalanine (U - 13C, 15N)=176.11348;guanine (unlabeled)=152.05668;guanine (U - 15N)=157.04186;inosine (unlabeled)=269.08804;inosine (U - 15N)=273.07618;cytosine (unlabeled)=112.05053;cytosine (13C2, 15N3)=117.04835;ABMBA (Br-nat)=229.98111;hypoxanthine (unlabeled)=137.04578;hypoxanthine (U - 15N)=141.03392;adenine (unlabeled)=136.06177;adenine (U - 15N)=141.04694;uracil (unlabeled)=113.03455;uracil (U - 13C, 15N)=119.04204;thymine (unlabeled)=127.0502'},
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