Table 1 in Variability in the composition of phenolic compounds in winter-dormant Salix pyrolifolia in relation to plant part and age

Table 1 Retention times, UV-absorption maxima by HPLC-DAD, molecular formula, mass of compounds, and accuracy (ppm) as tentatively identificated by UHPLC-QTOFMS. (t= retention time; 1) Na + -adduct = 23.98977, 2) H + -adduct = 1.00783; 3) Not enough ions detected; n.d. = not detected). R
CompoundtR (min)UV λmax (nm)tR (min) Q-MolecularMolar mass (gMeasured massCalculated massMass errorLCTOFformulamol −1)(ppm)Salicin a,b,d2.3212, 2681.601C13H18O7286.1053309.0955 1)309.0951 1)2.51Picein a2.9214, 2651.784C14H18O7298.1053321.0947 1)321.0950 1)- 1.01Picein derivative3.2210, 2622.990323,074 5Cinnamic acid derivative4.8210, 224, 2953450353.0880Chlorogenic acid derivative 16.6216, 236, 3303.183365.0848Triandrin a7.9212, 2604325C15H20O7312.1209335.1098 1)335.1106 1)- 2.61p -OH-Cinnamic acid-glucoside8.9212, 230, 3164.698C15H12O8326.1002349.0923 1)349.0899 1)6.76Catechin a,b,d9.7227(sh), 2793.916C15H14O76290.0790291.0859 2)291.0869 2)- 3.325-Caffeoylquinic acid a,b,d9.8218, 235, 3263.920C16H18O9354.0951377.0848 1)377.0849 1)- 0.23Ampelopsin a12.1228(sh), 2904.782C15H12O8320.0532321.0612 2)321.0611 2)0.48Salicortin a,b13.3213, 2715.448C20H24O10424.1370447.1275 1)447.1268 1)1.74Naringenin 5- O -glucoside a,c16.7226, 2826.414C21H22O10434.1213457.1115 1)457.1111 1)0.94Naringenin 5- O -glucoside17.7227, 283n.d.C21H22O10derivativeSalireposide a,b19.8228, 2847.396C20H22O9406.1264429.1163 1)429.1162 1)0.33Naringenin 7- O -glucoside a,c20.0226, 282, 3357.067C21H22O10434.1213457.1117 1)457.1111 1)1.31Quercetin 3- O -galactoside a,d20.6256, 3547.529C21H20O12464.0955487.0852 1)487.0853 1)- 0.10Luteolin 7- O -glucoside a20.8256, 266, 3497.969C21H20O11448.1006471.0828 1)471.0904 1)- 16.13Quercetin 3- O -glucoside a,d21.1256, 3547.796C21H20O12464.0955487.0861 1)487.0853 1)1.75Isorhamnetin 3- O -rhamnoside21.9254, 3888.809C22H22O11462.1162485.1069 1)485.1060 1)- 6.08Methylluteolin glucorhamnoside23.3266, 3469.084608.1741609.1802 2)609.1819 2)- 2.94Kaempferol 3- O -glucoside a23.8266, 3489.365C21H20O11448.1006471.0800 1)471.0904 1)- 6.16Chlorogenic acid derivative 224.2216, 248, 330n.d.Isosalipurposide c25.8240(sh), 3689.827C21H22O10434.1213457.1126457.11113.35HCH-derivative of salicin26.0210, 27010.727C20H24O10424.1370447.1268 1)447.1268 1)0p -OH-Cinnamic acid derivative 127.1220, 232, 318n.d.Luteolin derivative329.6254,34010.832286.0477287.0784 2)287.0556 2)79.557- O -Methylquercetin29.7256, 35611.448C16H12O7316.0583317.0655 2)317.0661 2)- 1.99p -OH-Cinnamic acid derivative 230.4213, 222, 313n.d.p -OH-Cinnamic acid derivative 330.6212, 230, 31712.272485.1427Naringenin a32.1228, 28312.039C15H12O5272.0685273.0760 2)273.0763 2)1.10Monomethyl-isosalipurposide32.6235(sh), 36612.247C22H24O10448.1369471.1236 1)471.1267 1)- 6.62Disalicortin a,b36.0212, 27012.278C40H48O20848.2739871.2636 1)871.2637 1)- 0.11Dimethyl-isosalipurposide37.4240(sh), 36813.065C23H26O10462.1526485.1416 1)485.1424 1)- 1.59
Tentative identification based on.
a Standard and references.
b Randriamanana et al., 2014.
c Krauze-Baranowska et al., 2013.
d Nissinen et al., 2016.