[Analysis of volatile components in Qingshanlvshui tea using solid-phase microextraction/accelerated solvent extraction-gas chromatography-mass spectrometry].

[Analysis of volatile components in Qingshanlvshui tea using solid-phase microextraction/accelerated solvent extraction-gas chromatography-mass spectrometry].

Se pu = Chinese journal of chromatography (2008-08-30)

Jiafen Zhan, Sheming Lu, Zhaoyu Meng, Nengjun Xiang, Qiu'e Cao, Mingming Miao

ABSTRACT

The volatile components of Qingshanlvshui Tea were extracted using solid phase micro-extraction (SPME) and accelerated solvent extraction (ASE), and then were identified by gas chromatography-mass spectrometry (GC-MS). It showed that ninety-one compounds were identified, including forty-nine by SPME, fifty-six by ASE, and fourteen by both of them. The main constituents were beta-myrcene, 3,5,5-trimethyl-1,5-heptadiene, L-limonene, alpha-ocimene, beta-ocimene, beta-pinene, 2-methylbenzaldehyde, 5-(hydroxymethyl)-2-furfural. Both SPME and ASE have their advantages. SPME is excellent at simplicity, rapidity, solvent-free, high enrichment, low detection limit, environment friendly etc. ASE has characteristics of time and solvent saving, automation, simplicity, as well as high efficiency.

MATERIALS

Product Number

Brand

Product Description

57902-U

Supelco

SPME Fiber Assembly, 65 μm PDMS/DVB, Metal Alloy (1 cm), needle size 23 ga, Autosampler, pk of 1, pink hub

57355-U

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SPME Fiber Assembly, 60 μm PEG, Metal Alloy (1 cm), needle size 23 ga, Manual Holder, pk of 3, purple hub

57333-U

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SPME Sampling Stand, for use with 4 mL vials

57301

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SPME Fiber Assembly, 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, red hub

57359-U

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SPME Portable Field Sampler, coating PDMS/DVB

57302

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SPME Fiber Assembly, 7 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, green hub

57319

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SPME Fiber Assembly, 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, black hub

57341-U

Supelco

SPME Fiber Assembly, 100 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, red hub

57308

Supelco

SPME Fiber Assembly, 30 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, yellow hub

57334-U

Supelco

SPME Fiber Assembly, 85 μm CAR/PDMS, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 3, light blue hub

57318

Supelco

SPME Fiber Assembly, 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, black hub

57304

Supelco

SPME Fiber Assembly, 85 μm Polyacrylate, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, white hub

57343-U

Supelco

SPME Fiber Assembly, 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, black hub

57344-U

Supelco

SPME Fiber Assembly, 75 μm CAR/PDMS, Fused Silica (1 cm), needle size 23 ga, Manual Holder, pk of 3, black hub

57310-U

Supelco

SPME Fiber Assembly, 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, blue hub

57309

Supelco

SPME Fiber Assembly, 30 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, yellow hub

57311

Supelco

SPME Fiber Assembly, 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, blue hub

57326-U

Supelco

SPME Fiber Assembly, 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Manual Holder, pk of 3, pink hub

57327-U

Supelco

SPME Fiber Assembly, 65 μm PDMS/DVB, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, pink hub

57346-U

Supelco

SPME Fiber Assembly, 65 μm PDMS/DVB, Fused Silica (1 cm), needle size 23 ga, Manual Holder, pk of 3, blue hub

57348-U

Supelco

SPME Fiber Assembly, 50/30µm DVB/CAR/PDMS, StableFlex (2cm), needle size 24 ga, Autosampler, pk of 3, notched gray hub

504823

Supelco

SPME Portable Field Sampler, coating PDMS

57300-U

Supelco

SPME Fiber Assembly, 100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, red hub

57303

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SPME Fiber Assembly, 7 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, green hub

57329-U

Supelco

SPME Fiber Assembly, 50/30µm DVB/CAR/PDMS, StableFlex (1 cm), needle size 24 ga, Autosampler, pk of 3, plain gray hub

57305

Supelco

SPME Fiber Assembly, 85 μm Polyacrylate, Fused Silica (1 cm), needle size 24 ga, Autosampler, pk of 3, white hub

57342-U

Supelco

SPME Fiber Assembly, 100 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Manual Holder, pk of 3, red hub

57298-U

Supelco

SPME Fiber Assembly, 50/30µm DVB/CAR/PDMS, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, plain gray hub

57294-U

Supelco

SPME Fiber Assembly, 85 μm Polyacrylate, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, white hub

57295-U

Supelco

SPME Fiber Assembly, 85 μm CAR/PDMS, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, light blue hub