Eighth ISMAS Symposiumon

Mass Spectrometry

December 7-9, 1999Indian Institute of Chemical Technology, Hyderabad

CONTRIBUTED PAPERS(Volume II)

OP VERSITATSBI8UOTHEKHANNOVflf*

EM*** TECHNISCHE

S.K.A

Indian Society for Mass Spectrometry (ISMAS)

Board of Research in Nuclear Sciences (BRNS)Council of Scientific and Industrial Research (CSIR)

Department of Bio Technology (DBT)Department of Ocean Development (DOD)

Department of Science and Technology (DST)

Contributed Papers(Volume II)

Atomic and Molecular Physics (AMP)

1. Multiphoton Fragmentation/Ionisation of DimethylDisulphide (CH3SSCH3): A Time of Flight MassSpectrometry Study 499

R.K. Vatsa, C. Majumder, O.D. Jayakumarand S.K. Kulshreshtha

2. Resonance Ionisation Mass Spectrometry of Europium 503

P. V. Kiran Kumar and M. V. Suryanarayana

3. Adsorbate Geometry Studied by Ion/Surface ReactiveScattering 508

T. Pradeep, C. Evans, J. Shen andR.G. Cooks

Biological and Environmental Sciences (BES)

4. Characterization of PAH and their Methylated Derivativesin Ambient Air of Nagpur City by GC-MS Technique 512

V.V. Khaparde, KM. Phadke, S.D. Wachasunderand M.Z. Hasan

5. Analysis of Chemical Neutralisation Products ofPhosphonothiolates by Gas Chromatography-MassSpectrometry (GC-MS) 516

A.K. Gupta, M. Palit, D.K. Dubey, S.K. Razaand R. C. Malhotra

6. Confirmation of Structure of Perfluoroisobutylene andits Derivative by GC/Tandem Mass Spectrometry 520

M. Palit, S. K. Raza, P. S. Bhadury andD. K. Jaiswal

7. Gas Chromatography Mass Spectrometry for Detectionof Pollutants 523

S.D. Wachasunder

8. Monitoring of Intermediates in ETP Systems forNitroaromatics Using GC-MS 527

A. Qureshi, S. D. Wachasunder and H.J. Purohit

xi

9. Head Space Solid Phase Micro Extraction - GasChromatography/Mass Spectrometry - A ViableAlternative Technique for Pheromone Analysis 528

M.V.S. Suryanarayana, U.V.R.V. Saradhi,S. Prakash, K. Ganesan and R. C. Malhotra

10. Mass Spectral Studies for the Determination andSpeciation of Arsenic by Gas Chromatography-Mass Spectrometry (GC-MS) 533

S.K. Aggarwal, R. Fitzgerald and D.A. Herold

11. LA-ICP-MS Analysis of Platinum in EnvironmentalSoil Samples Following Micro-Fire Assay Technique 537

N.S. Siddaiah, A. Masuda and T. Hirata

12. Electrospray LC-MS and the Use of Controlled Isotope(12C : C) Dosing for the Structural Elucidation of SoilMetabolites of a Cereal Herbicide 540

D. Ghosh and R. Jackson

13. A Rapid Solid Phase Extraction, GC-MS Method for theDetermination of a Pyrethroid Insecticide LambdaCyhalothrin in Oil and Fat Samples 545

A. Ramesh ,

14. Comparison of GC and GC/MS Analyses for PCBs inSamples with Matrix Interferences 548

Yi-Hua Lin, R. Singhvi and S. Burchette

Earth and Planetary Sciences (EPS)

15. Noble Gases in Dar al Gani 476- the New MartianMeteorite from Sahara 552

R.K. Mohapatra and S. V.S. Murty

16. Origin of Diamonds in Ureilites: Implications fromNitrogen Isotopic Composition 556

V.K.RaiandS.V.S. Murty

17. Recycled Component in the Mantle-Derived Materials:A Nitrogen and Noble Gas Perspective 560

R. K. Mohapatra and S. V. S. Murty

XII

18. Continental Evidences of the Strongest MonsoonalIntensity at 4 Ma 564

P. Ghosh, S. Chakraborty, R.A. Jani, P. Guptaand S.K. Bhattacharya

19. Mg and K Isotopic Compositions and Refractory TraceElement Abundances in Early Solar System Solids 567

K.K. Marhas, A.M. Davis and J.N. Goswami

20. 40Ar - 39Ar Dating of Volcanics of Indus Suture Zone,Ladakh: Implication for Pre-, Syn- and Post-CollisionTectonic Activity 571

R. Bhutani, K. Pande and T.R. Venkatesan

21. 40Ar - 39Ar Ages of the Sylhet Traps : Evidence forCoeval Rajmahal Sylhet Volcanism 574

K. Pande and J.S. Ray

22. Isotopic Dating of Granodiorites from Krol Belt,near Nainital 576

A.R. Vijan, M. Bansal, S.S. Rathore,B.N. Prabhu and K.N. Misra

23. Geochronological Studies on the Basement Rocks ofCauvery Basin, East Coast of India 581

M. Bansal, N. Ghosh, M. P. Singh, P. S. Rao,S. Prasad and B. N. Prabhu

24. Re-Os Isotope Measurements in Black Shales of theLesser Himalaya: Their Chronology and Influence onOceanic Os Isotope Budget 585

S.K. Singh, J.R. Trivedi and S. Krishnaswami

25. Re Abundances in the Yamuna Source Waters: Sources,Fluxes and Implications to Blackshale Dating 588

T.K. Dalai, J.R. Trivedi and S. Krishnaswami

26. Pan-African Tectono-Thermal Event from Heera Fieldof Mumbai Offshore Basin of India 591

S.S. Rathore, A.R. Vijan, M.P. Singh, B.N. Prabhuand K.N. Misra

27. Recrystallization of Zircon and its Effect on U-Pb Dating 595

J.G. Ghosh

xiii

28. Rb-Sr Geochronology of the Late Archaean - EarlyProterozoic Basement Granites Adjoining the SouthwesternMargin of the Cuddapah Basin 600

U.K. Pandey, R.N. Prasad, K. Umamaheshwar,P.K. Pate I, P.V. Tirupati, M.K. Rao and T. Chabria

29. Sulphur Isotope Study on Pyrites from Various Lithologiesaround Kerpura Area and its Bearing on the Source ofSulphur and Uranium Mineralisation in Albitite-Pyroxenite-Microclinite Belt of Northern Rajasthan 605

U.K. Pandey, S. Hamilton, D.D. Pande,Ch. Rami Naidu and T. Chabria

30. Stable Carbon and Oxygen Isotope Studies on Carbonatitesfrom Sung Valley, Meghalaya and Ambadongar andSiriwasan, Gujarat 608

V. Krishna, D.D. Pande, K. Asha,P. Krishnamurthy and T. Chabria

31. A Multiproxy Paleoclimatic Record of Late Quaternaryfrom the Eastern Arabian Sea 611

A. Sarkar, R. Agnihotri, R. Ramesh,B.L.K. Somayajulu, A.J.T. Jull and G.Burr

32. AMS Exposure Dating: A Case Study from Himalaya andTibet and its Application Potentials in Earth ScienceStudies, in India 614

K.K. Sharma

33. Multiple Isotopic Studies of Calcite Growth in ConcreteStructures 620

R.V. Krishnamurthy, D. Schmitt, E. Atekwanaand M.M. Baskaran

34. Carbon, Oxygen and Strontium Isotope Systematics ofCarbonate Rocks of the Kaladgi Supergroup, Southern India ........ 624

S.D. Sharma, A.M. Dayal, B. Kumar and V.S. Kale

35. Carbon and Oxygen Isotope Studies on Limestones fromthe Eastern Ghats Granulite Belt: Inference on theDepositional Environment 627

V.D. Rao, D.J. Patil, N.N. Murthy and B. Kumar

XIV

36. The Role of Carbon Cycle in the Evolution of Atmosphere,Hydrosphere and Biosphere during the Paleoproterozoic 630

B. Sreenivas and S.D. Sharma

37. Evolution of Neodymium Isotopes in the Northeast IndianOcean During the Last -30,000 Years 633

S.M. Ahmad, A.M. Dayal and V.M. Padmakumari

38. Sr, Nd Isotopic Studies of Clastic Sediments in the NortheastIndian Ocean - New Results from ODP Site 758A 635

V.M. Padmakumari and S.M. Ahmad

39. Rb-Sr Isochron Ages on Granites from Basement ofBhima Basin, Gulbarga Dist., Karnataka 638

D.V.L.N. Sastry, V. Krishna, U.P. Sharma,G. Bhatt, J.K. Patnaik, M.K. Kumar andT. Chabria

40. A Note on the Genesis of Hydrogen Sulphide in BasseinField, Bombay Offshore Basin, India 642

A.K. Mittal, U. Chandra, A.K. Uniyal, A.K. Gupta,N.J. Thomas, K.N. Misra and Kuldeep Chandra

41. Late Archaean Mantle Metasomatism below Eastern IndianCraton : Evidence from Trace Elements, REE Geochemistryand Sr -Nd isotope Systematics of Ultramafic Dykes 647

A. Roy, A. Sarkar, S. Jeyakumar, S.K. Aggarwaland M. Ebihara

42. Mid-Proterozoic Plume Related Thermal Event in EasternIndian Craton: Evidence from Trace Elements, REEGeochemistry and Sr - Nd Isotope Systematics of Mafic-Ultramafic Intrusives from Dalma Volcanic Belt 648

A. Roy, A. Sarkar, S. Jeyakumar, M. Ebiharaand S.K. Aggarwal

43. Rapid Change in Atmospheric pCO2 Across theEocene-Oligocene Boundary : Organic Carbon IsotopeEvidence from Kutch Palaeogene Sequence 650

S. Sarangi, A. Sarkar, A.K. Ray, S.K. Bhattacharyaand H.J. Hans en

xv

44. Application of Environmental Stable Isotopes in MineHydrology : A Field Example 652

KM. Kulkarni, U.P. Kulkarni and S. Sharma

45. Study of Groundwater Salinity in an Inland Basin, CentralIndia Using Environmental 2H and O 656

S. Sharma, KM. Kulkarni, U.P. Kulkarni,T.B. Joseph and A. Deodhar

2 18

46. Application of Environmental Isotopes Hand O inIdentifying the Source of Seepage in Some Parts ofJodhpur City, Rajasthan 659

U.K. Sinha, S. Sharma, U.P. Kulkarni andT.B. Joseph

47. Stable Isotope as a Tracer to Find Out Origin of SeepagesOccuring at Chaskaman Dam Site Near Pune, Maharashtra 663

U.P. Kulkarni, S. Sharma and KM.Kulkarni

48. Mass Spectrometric Characterisation of Olefinic Impuritiesin Heavy Alkyl Benzenes 667

Basant Kumar, R. B. Gupta and Pradeep Kumar

Isotopic Composition and Concentration Measurements(ICC)

49. Analysis of High Purity Water, Hydrochloric and NitricAcids for Trace Element Impurities by ICP-MS 671

V. Balaram, K. Chandrasekhar, A.K. Agrawal,P.N. Sharma, S. Ganju, T.N. Rao, K.V. Anjaiah,S. Husain and K. Lai

50. Investigation of the Effect of Xenon During the IsotopicAnalysis of Oxygen with a Stable Isotope Ratio MassSpectrometer 675

S. Chakraborty and M. Thiemens

51. Determination of He / He Ratio using Double FocusingMass Spectrometer 678

K.A.Jadhav, N.Padma , KK.B.Nair andV. V.K.Rama Rao

XVI

52. Determination of Trace Impurities in High PurityChromium Metal after Matrix Removal by ICP - MS 681

S.A. Kumar, K.V. Rao, P.T. Rajagopalanand T. V. Ramakrishna

53. GD-QMS Analysis of Tin in Zirconium Alloy Matrix 686

R. Shekhar and J. Arunachalam

54. Determination of Trace Metals in Tobacco 690

D. Karunasagar

55. Determination of Arsenic Compounds in BiologicalSamples using Microwave -assisted Extraction Followedby HPLC-ICP-MS: A Novel Method 694

A. Chatterjee

56. Studies for Accurate Isotopic Analysis of Gallium byThermal Ionization Mass Spectrometry (TIMS) 699

P.M. Shah and S.K. Aggarwal

57. Isotope Dilution Spark Source Mass Spectrometry(ID-SSMS) for the Determination of Trace ConstituentBoron in Aluminium 702

V.L.Sant, V.A.Raman and S.K.Aggarwal

58. Characterisation of High Purity Lanthanides with respectto Trace Constituents using Spark Source Mass Spectrometry(SSMS): Study on Gadolinium Oxide (Gd2O3) 705

V.L. Sant and S.K. Aggarwal

59. Importance of O Natural Abundance Correction in the

Isotopic Analysis of Boron as Na2BO* Employing ThermalIonisation Mass Spectrometric Technique 708

S.A. Chitambar, A.R. Parab and P.S. Khodade

Inorganic Chemistry and Thermodynamics (ICT)

60. Vaporisation Studies on TeO2 (s) 712

T.S. Lakshmi Narasimhan, M. Sai Baba andR. Viswanathan

XVII

61. Di.soration Equilibrium (TeO)2(g) = 2 TeO(g):A Knudsen Effusion Mass Spectrometric Study 716

T.S. Lakshmi Narasimhan, M. Sai Baba andR. Viswanathan

62. Mass Spectrometric Studies on Mn-Te-0 System 719

T.S. Lakshmi Narasimhan, M. Sai Baba andR. Viswanathan

63. Determination of Sulphur by Vacuum CombustionExtraction - Quadrupole Mass Spectrometry (VCE - QMS) 722

Y.S. Sayi, G.C. Chhapru, P.S. Shankaran,C.S. Yadav, K.L. Ramakumar and V. Venugopal

64. Vacuum Decomposition Pattern of Ferrous AmmoniumSulphate -A Quadrupole Mass Spectrometric Study 726

Y.S. Sayi, P.S. Shankaran, C.S. Yadav,G.C. Chhapru and K.L.Ramakumar

65. Trace Element Analysis in Organics and PetrochemicalsUsing Inductively Couple Plasma Mass Spectrometry(ICP-MS) 729

S.J, Kumar, M.A. Reddy, N.N. Meeravali

Instrumentation (INS)66. Laser Microprobe for the Analysis of Noble Gases and

Nitrogen in a Single Grain ; 733

R.R. Mahajan, M.K. PrasadandS.V.S. Murty

67. Use of a Quadrupole Mass Spectrometer to Determine theFlow Ratio of an Orifice Flow High Vacuum Standard 737

P. Mohan and A.C Gupta

68. Experience of Using Needle Valve in Sample IntroductionSystems for D/H Analysis 741

H.K Saini, N.V. Rao and V.C. Sahni

69. Hexapole and Octupole Resonances in a Combined Trap 745

A. Banerjee, S. Sevugarajan and V. Natarajan

xvm

70. Performance Checking of an Indigenously Fabricated TIMS :Sudden Disappearance of Mass Peaks 749

D.K. Das, A.S. Kanekar, V.R. Sonar, P.G. Behereand V.K. Bhargava

71. Variable Width Precision Slit Assembly for High ResolutionMass Spectrometers 752

P. Raju, V.V. Katke , S.R. Halbe andV.V.K. Rama Rao

72. Effect of Misalignment of Filament Assembly and FocusingElectrodes on Ion Transmission in a Thermal IonizationSource 756

N. Padma, V.V.K. Rama Rao and V.C. Sahni

73. Thermal Ionisation Mass Spectrometer for the IsotopicAnalysis of Lithium and Boron 761

S.N. Bindal, K.V. Kurup, K.A. Sayed, R.G. Ochani,A'.R. Parkar, V.B. Reddy, P. Raju, T.K. Saha,N.V. Rao, V.K. Handu, S.R. Halbe andV.V.K. Rama Rao

74. ICP-MS - Improvements in Detection Limits 767

V.Nataraju, D.Ramanathan, V.C.Sahni,V.V.K.RamaRao, P.Raju andS.R.Halbe

75. Study of Gas Feed System of Aditya Tokamak UsingQuadrupole Mass Analyzer 771

K.VA.N.P.S. Kumar and S.B. Bhatt

76. A New Approach to Partial Pressure Analysis 776

D.C. Reddy, S.B. Bhatt, B.K. Das and G.C. Sethia

11. Variation of Axial Frequency Shifts with Mass and Positionin Non-linear Paul Trap Mass Spectrometers 779

S. Sevugarajan, S.R. Prasad andA.G. Menon

78 Recent Developments in ICP- Multicollector MassSpectrometry 783

/. Cantle

79. Potential Distribution in an Electric Octopole 790

V.V.K. Rama Rao. N. Padma and A. Bhutani

XIX

80. An Improved Data Acquisition System for Isotopic Ratio•Mass Spectrometers 793

T.K. Saha, B. Reddy, C.K. Nazare and V.K. Handu

81. Data System for Organic Sample Analysis on DoubleFocusing Mass Spectrometer 797

R.B. Ingole, N. Padma, K.A. Jadhav, V.K. Handuand V.V.K. Rama Rao

82. Design Aspect of Data Acquisition System for Time of FlightMass Spectrometer and its Proposed Design 801

K. Joshi and V. K. Handu

83. Improvements in Thermal Ionisation Mass SpectrometerInstrumentation 806

P. Abhichandani, N.S. Chaudhary, A.N. Garud,M.K. Gor, S.R. Halbe, V.K. Handu, R.B. Ingole,K.A. Jadhav, G.P. Kothiyal, C.K. Nazare,Abdul Rab, P. Raju, V.V.K. Rama Rao, B. Reddy,T.K. Saha and V.C. Sahni

84. Performance Checking of an Indigenously Fabricated TIMS:Evaluation of Internal Precision 810

D.K. Das, A.S. Kanekar, V.R. Sonar andV.K. Bhargava

85. Design of a Time of Flight Mass Spectrometer forResonance Ionization Mass Spectroscopy 814

D. Alamelu, C.S. Subbanna and S.K. Aggarwal

86. LC-MS Instrumentation from PE-Biosystems 818

Thomas Fechner and Andre Schreiber

87. Some Instrumental Developments Leading from theEmployment of Orthogonal Acceleration Time-of-FlightMass Spectrometry 819

R.H. Bateman, K. Giles, M.R. Green, J. Hoyesand J. W. Letcher

88. Recent Developments in Ion Trap Mass Spectrometry forLC/MS/MS 821

P.J.F. Watkins, M.E. Harrison. J. CuniffandP.R. Tiller

xx

89. The Use of Multi-Collector ICP-MS for the Measurementof Isotope Ratios in Geological and Nuclear Applictions 825

Z. Palacz, S. Meffan-Main, R.C. Haines,P.J. Turner

90. LC/MS Analysis of Aflatoxins in Food Samples Usingan Ion Trap 838

A. Ingendoh and A. Schneider

Nuclear Technology (NT)

91. Thermal lonisation Mass Spectrometric Studies on FissionProduct Neodymium from a Spent MAPS Fuel Solution 844

R. Balasubramanian, S. Nalini, N. Sivaramanand M. Sai Baba

92. Thermal Ionization Mass Spectrometric Study of U-Pu-0System 847

D.D. Albert Raj, S. Nalini, R. Viswanathanand R. Balasubramanian

93. Mass Spectrometric Study of U-Pu Mixed Carbide SpentFuel Solution 851

S. Nalini, R. Balasubramanian, M. Sai Baba,D. Darwin Albert Raj and R. Viswanathan

94. Large Size Dry (LSD) Spike Isotope Dilution MassSpectrometry (IDMS) for Input Accounting of U & Pu inFuel Reprocessing : A Field Experience 854

P.B. Gurba, Rajendra Kumar, R.K. Singh,D.D. Bajpai, S.V. Udagatti, C.A. Xavier andM.A. Kesarkar

95. Correlations for Isotopic Composition of Plutonium usingThermal Ionization Mass Spectrometry (TIMS) 857

S.K. Aggarwal, D. Alamelu and P.M. Shah

96. Isotope Dilution - Thermal Ionization Mass Spectrometry(ID-TIMS) for Determination of Trace Constituent Uraniumin Zircaloy 861

P.M. Shah, V.A. Raman and S.K. Aggarwal

XXI

97. Isotope Ratio Measurements for Plutonium in IsotopicReference Materials by Thermal Ionisation MassSpectrometry (TIMS) using Total Evaporation Technique 863

S.K. Aggarwal, R. Fiedler and S. Deron

98. Precise and Accurate Determination of Half-life of 2Pu 869

S.K. Aggarwal, W. Raab, R. Fiedler and S. Deron

Organic Chemistry (OC)

99. Mass Spectrometer as a Probe in the Synthesis of2-Substituted-3-Phenyl-4(3H)-Quinazolinones 874

D.V. Ramana and T.E. Yuvaraj

100. Generation and Characterization of Cations, Anions andNeutrals of [HNC(S)S]+#/"/o and [HNC(S)SH]+A/o byNeutralization-Reionization Mass Spectrometry 878

S. Vivekananda and R. Srinivas

101. Generation and Characterization of Ionic and Neutral(CH3OBH)+/& and Methyl (CH3BOH)+/& in the GasPhase by Neutralization-Reionization Mass Spectrometry 883

R. Srinivas, S. Vivekananda, S.J. Blanksby,D. Schroder, J.K. Terlouw and H. Schwarz

102 Mass Spectral Fragmentation Patterns of 1-Aroy 1-3-(Substituted Phenyl)-5- (2,4-Dichloro-5-Fluoro)Phenyl-5-Hydroxy Pyrazolines 889

B.S. Holla, B.S. Rao, P.M. AkberAH andK. Shridhara

103. Electron Impact Studies of Mono and Bis-UnsaturatedOxo Sulfones and Bissulfones 892

D.B. Reddy, N.C. Babu, V Padmavathi andA.S. Reddy

104. Electron Impact Studies of Pyrazolines and Isoxazolines 895

V. Padmavathi, R.P. Sumathi, A. Padmaja andD.B. Reddy

XXII

105. Mass Spectral Fragmentation Patterns of Some FluorineContaining Arylfurylpropenones, Arylfurylpyrazolines andN-Acetylpyrazolines 897

B.S. Holla and M.K. Shivananda

106. Mass Spectral Studies of Some Fluorine ContainingArylfurylvinylquinazolinones 902

B.S. Holla and M.K. Shivananda

107. Mass Spectral Studies on Diastereomeric Oxathiolanes :A Configurational Study 906

E.H. Khan, S. Shafi, S. H us sain, J. Firoz andShaflullah

108. El Mass Spectral Studies of 2-Substituted-l ,2,3,4-Tetrahydro-1,3,2-Benzodiazaphosphorine 2-Oxides 909

L.N. Rao and CD. Reddy

109. El-Mass Spectral Fragmentation of 2-(Alkylcarbamato)-2,3-Dihydro-5-(Propy loxo)-1H-1,3,2-Benzodiazaphosphole 2-Oxides 912

M. Venugopal and CD. Reddy

110. El-Mass Spectral Fragmentation of 2-Alkylcarbamato-2,3-Dihydro-5-Propylthio-1H-1,3,2-Benzodiazaphosphole 2-Oxides 915

D. Srinivasulu, CD. Reddy and C.V.N. Rao

111. El Mass Spectral Studies of 2-Substituted6-Chloro-4-Trichloro-methyl-4H-1,3,2-Benzodioxaphosphorin 2-Sulphides 918

C.N. Raju, CD. Reddy and P.M. Reddy

112. N-Acetyl Glucosamine as Chiral Co-Matrix for theDifferentiation of D/L-Lysine Under Liquid SecondaryIon Mass Spectral Conditions 921

K. Suma and M. Vairamani

113. Determination of Gas-Phase Basicities of Some AminoAcid Methyl Esters and Their Deuterated Derivatives byKinetic Method 924

P. Krishna, S. Prabhakar, N.S. Swamy andM. Vairamani

XXIII

114. Chiral Recognition and the Determination of Optical Purityof oc-Phenylethylamine Using Monosaccharide as a ChiralSelector Under Liquid Secondary Ion Mass SpectralConditions 928

P. Krishna, S. Prabhakar, M.Manoharan,E. D. Jemmis and M. Vairamani

115. El-Mass Spectra of Bis-1,1'-Binaphthyl- 2,2'-Hydroxyethylether and 2,2'-Di-(2-Hydroxyethoxy)-1,1-Binaphthyl Methane 932

K.A. Kumar and C.S. Reddy

116. El Mass Spectral Studies of 8-Alkyl Carbamato -16H-Dinaphtho [2,1-d: 1'-2'-g][l ,3,2] Dioxaphosphocin8-Oxides 934

M.F.S. Babu, C.S. Reddy

111. Claisen-Rearrangement of Allyl Phenyl Ether and its Sulfurand Selenium Analogues Under Electron Impact MassSpectral Conditions 937

S. Prabhakar, M. S. Parveen, A. Kundu, S. Royand M. Vairamani

118. Collision Induced Dissociation Fourier Transform IonCyclotron Resonance Mass Spectrometry of Porphyrins 941

M. Ahmad, I.G. Dance, K.J. Fisher and G.D. Willett

XXIV