N alkanes c8 c40

Aroma standards including neryl acetate, geranyl acetate, decanoic acid ethyl ester, coumarin, α-pinene, β-pinene, β-myrecene, γ-terpinene, α-terpinene, geraniol, limonene, copaene, hexanal, heptanal, benzaldehyde, octanal, (E,E)-2,4-heptadienal, benzeneacetaldehyde, decanal, α-ionone, linalool, terpinen-4-ol, nerol, o-cymene, 1-methyl-4-(1-methylethenyl)-benzene, 2-ethylfuran, furfural, theaspirane B, linalyl acetate, and trans-β-ionone, were purchased from J&K Scientific Ltd. (Beijing, China) and Sigma Aldrich Corp. (St. Louis, MO, USA). Distilled water was purchased from Wahaha Group Co. Ltd. (Hangzhou, China) and n-Alkanes (C8-C40) were obtained from J&K Scientific.
Headspace solid-phase microextraction (SPME) fibers including Carboxen^®/polydimethylsiloxane (CAR/PDMS; 57335-U), polydimethylsiloxane/divinylbenzene (PDMS/DVB; 57327-U), divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS; 57329-U), and polydimethylsiloxane (PDMS; 57301) were purchased from Supelco Inc. (Bellefonte, PA, USA).

n-Alkanes (C8–C40) were purchased from J&K Scientific, Beijing, China. Benzaldehyde, benzyl alcohol, (Z)-3-hexenyl acetate, methyl salicylate, and 2-phenylethanol were purchased from Wako Pure Chemical Industries Ltd, Osaka, Japan. Ethyl n-decanoate, geraniol, 1-hexanol, (Z)-3-hexenol, phenylacetaldehyde, α-farnesene, (E)-nerolidol, linalool, linalool oxide, polyvinylpolypyrrolidone (PVPP), and XAD-2 were purchased from Sigma-Aldrich Company Ltd., Louis, MO, USA. geraniol was purchased from TCI Development Co., Ltd, Shanghai, China. The Quick RNA isolation kit was purchased from Huayueyang Biotechnology Co., Ltd., Beijing, China. The 2× SYBR Green Universal PCR Mastermix was purchased from Bio-Rad Laboratories, Richmond, CA, USA.