. Author manuscript; available in PMC: 2015 May 21.

Published in final edited form as: Anal Chem. 2014 Feb 5;86(4):2221–2228. doi: 10.1021/ac403879d

Table 3.

Fragments of TMS-Derivatized Compounds Part 3

compound	m/z	m/z ¹³C	m/z d₉-TMS	formula
phenylalanine 2TMS	309	–	–	C₁₅H₂₇NO₂Si₂
	294	303	309	C₁₄H₂₄NO₂Si₂
	266	274	281	C₁₃H₂₄NOSi₂
	218	220	236	C₈H₂₀NO₂Si₂
	192	200	201	C₁₁H₁₈NSi
proline 2TMS	259	–	–	C₁₁H₂₅NO₂Si₂
	244	249	259	C₁₀H₂₂NO₂Si₂
	216	220	231	C₉H₂₂NOSi₂
	142	146	151	C₇H₁₆NSi
serine 3TMS	321	–	–	C₁₂H₃₁NO₃Si₃
	306	309	330	C₁₁H₂₈NO₃Si₃
	278	280	302	C₁₀H₂₈NO₂Si₃
	218	220	236	C₈H₂₀NO₂Si₂
	204	206	222	C₈H₂₂NOSi₂
	188	190	203	C₇H₁₈NOSi₂
succinic acid 2TMS	262		280	C₁₀H₂₂O₄Si₂
	247		262	C₉H₁₉O₄Si₂
	172		181	C₇H₁₂O₃Si
threonine 3TMS	335	–	–	C₁₃H₃₃NO₃Si₃
	320	324	344	C₁₂H₃₀NO₃Si₃
	218	221	236	C₉H₂₄NOSi
tyrosine 2TMS	325	–	–	C₁₅H₂₇NO₃Si₂
	310	319	325	C₁₄H₂₄NO₃Si₂
	282	290	297	C₁₃H₂₄NO₂Si₂
	208	216	217	C₁₁H₁₈NOSi
	192	200	198	C₁₀H₁₄NOSi
tyrosine 3TMS	397	–	–	C₁₈H₃₅NO₃Si₃
	382	391	406	C₁₇H₃₂NO₃Si₃
	354	362	378	C₁₆H₃₂NO₂Si₃
	280	288	298	C₁₄H₂₆NOSi₂
	218	220	236	C₈H₂₀NO₂Si₂
uracil 2TMS	256	260	284	C₁₀H₂₀N₂O₂Si₂
	241	245	256	C₉H₁₇N₂O₂Si₂
valine 2TMS	261	–	–	C₁₁H₂₇NO₂Si₂
	246	251	261	C₁₀H₂₄NO₂Si₂
	218	220, 222	233, 236	C₉H₂₄NOSi₂