ELECTROSPRAY MASS-SPECTROMETRY - PROTONATED MOLECULE INTENSITIES VERSUS HYDRATION FREE-ENERGIES IN AMINO-ACIDS

被引:3
作者
SAKAIRI, M
YERGEY, AL
SIU, KWM
LEBLANC, JCY
GUEVREMONT, R
BERMAN, SS
机构
[1] NICHHD,BETHESDA,MD 20892
[2] NATL RES COUNCIL CANADA,DIV CHEM,OTTAWA K1A 0R9,ONTARIO,CANADA
关键词
ELECTROSPRAY MASS SPECTROMETRY; HYDRATION FREE ENERGY; AMINO ACID; PROTONATED MOLECULE INTENSITY;
D O I
10.2116/analsci.7.199
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
We demonstrate a high correlation between the natural logarithms of the relative intensities of protonated molecules of amino acids by electrospray and their standard hydration free energies (r = 0.98). This result means that the solvation free energy is an important physical parameter for interpreting the difference in protonated molecule intensities by electrospray.
引用
收藏
页码:199 / 202
页数:4
相关论文
共 15 条
[1]   GROUP CONTRIBUTIONS TO THE THERMODYNAMIC PROPERTIES OF NON-IONIC ORGANIC SOLUTES IN DILUTE AQUEOUS-SOLUTION [J].
CABANI, S ;
GIANNI, P ;
MOLLICA, V ;
LEPORI, L .
JOURNAL OF SOLUTION CHEMISTRY, 1981, 10 (08) :563-595
[2]   ELECTROSPRAY IONIZATION-PRINCIPLES AND PRACTICE [J].
FENN, JB ;
MANN, M ;
MENG, CK ;
WONG, SF ;
WHITEHOUSE, CM .
MASS SPECTROMETRY REVIEWS, 1990, 9 (01) :37-70
[3]   On the evaporation of small ions from charged droplets [J].
IRIBARNE, JV ;
THOMSON, BA .
JOURNAL OF CHEMICAL PHYSICS, 1976, 64 (06) :2287-2294
[4]   SOME FACTORS IN THE INTERPRETATION OF PROTEIN DENATURATION [J].
KAUZMANN, W .
ADVANCES IN PROTEIN CHEMISTRY, 1959, 14 :1-63
[5]   EVALUATED GAS-PHASE BASICITIES AND PROTON AFFINITIES OF MOLECULES - HEATS OF FORMATION OF PROTONATED MOLECULES [J].
LIAS, SG ;
LIEBMAN, JF ;
LEVIN, RD .
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1984, 13 (03) :695-808
[6]   ENERGY PARAMETERS IN POLYPEPTIDES .7. GEOMETRIC PARAMETERS, PARTIAL ATOMIC CHARGES, NONBONDED INTERACTIONS, HYDROGEN-BOND INTERACTIONS, AND INTRINSIC TORSIONAL POTENTIALS FOR NATURALLY OCCURRING AMINO-ACIDS [J].
MOMANY, FA ;
MCGUIRE, RF ;
BURGESS, AW ;
SCHERAGA, HA .
JOURNAL OF PHYSICAL CHEMISTRY, 1975, 79 (22) :2361-2381
[7]  
NOZAKI Y, 1971, J BIOL CHEM, V246, P2211
[8]   DESOLVATION OF IONS AND MOLECULES IN THERMOSPRAY MASS-SPECTROMETRY [J].
SCHMELZEISENREDEKER, G ;
BUTFERING, L ;
ROLLGEN, FW .
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES, 1989, 90 (02) :139-150
[9]   MULTIPLY CHARGED IONS IN IONSPRAY TANDEM MASS-SPECTROMETRY [J].
SIU, KWM ;
GARDNER, GJ ;
BERMAN, SS .
ORGANIC MASS SPECTROMETRY, 1989, 24 (10) :931-942
[10]  
SMITH RD, 1989, 37TH P ASMS C MASS S, P391