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褪黑素

CAS:No.73-31-4

英文名称:Melatonin

纯度:HPLC≥98%

分子式:C13H16N2O2

分子量:232.28

储存条件:Store at 2-8℃,2 years.

褪黑素
标准品同系列5送2
货号:
SM8590
品牌:
Solarbio
SKU 北京总部 北京海淀 武汉 广州
SM8590-20mg 咨询 咨询 咨询 咨询
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 本品为分析标准品。

使用本产品的案例(仅供参考

LC-MS

For HILIC separation, samples were injected onto an column (2.1 ×100 mm, 1.7 µm; ) at 25 ℃, and using a 21.2 min linear gradient at 0.3 mL/min flow rate and 2 µL injection volume. ESI source conditions were set as follows: curtain gas (CUR) as 30, ion source gas1 (GS1) as 60, and ion source gas2 (GS2); source gas temperature as 600℃; ISVF as 5500 V. The MS/MS acquisition was performed in positive (PI) and negative ion (NI) modes, the mass range was set at 25-1000 m/z, and the accumulation time for product ion scan was set at 0.05 s/spectrum.

The second order spectrum was acquired in information-dependent acquisition (IDA) and high-sensitivity modes. Parameters were set as follows: declustering potential (DP) as±60 V; collision energy as 35 V±15 eV; maximum candidate ions to monitor per cycle as 10; excluding isotopes within 4 Da.

来源文献:Ma Z, Yang K, Wang J, Ma J, Yao L, Si E, Li B, Ma X, Shang X, Meng Y, Wang H. Exogenous Melatonin Enhances the Low Phosphorus Tolerance of Barley Roots of Different Genotypes. Cells. 2023 May 16;12(10):1397. doi: 10.3390/cells12101397. PMID: 37408231; PMCID: PMC10217165.


HPLC

The column (C18, 4.6 × 250 mm, 5 μm) temperature was maintained at 35 °C. An isocratic mobile phase consisted of methanol: deionized water: trifluoroacetic acid of 45:55:0.05 (v:v:v) and the flow rate was 0.8 ml/min . The injection volume was 10 μL. 

来源文献:[1] A Y M , B P L , C C B W ,et al.Chlorine dioxide and sodium diacetate treatments in controlled atmospheres retard mold incidence and maintain quality of fresh walnuts during cold storage - ScienceDirect[J].Postharvest Biology and Technology, 161[2023-08-25].DOI:10.1016/j.postharvbio.2019.111063.


HPLC

Melatonin contents of nuts at harvest and for all treatments at 135 d were determined using a HPLC at 222 nm. The column (C18, 4.6×250 mm,5 μm ) temperature was maintained at 35℃. Anisocratic mobile phase consisted of methanol: deionized water: tri-fluoroacetic acid of 45:55:0.05 (v:v:v) and the flow rate was 0.8 ml/min. The injection volume was 10 μL. 

来源文献:[1] A Y M , B P L , C C B W ,et al.Chlorine dioxide and sodium diacetate treatments in controlled atmospheres retard mold incidence and maintain quality of fresh walnuts during cold storage - ScienceDirect[J].Postharvest Biology and Technology, 161[2023-09-08].DOI:10.1016/j.postharvbio.2019.111063.


HPLC

The active components of ZZD were analyzed by LC AT-20 HPLC with double solvent pump high-pressure gradient system and SPD-20A photodiode array detector. The chromatography was performed on 5 lm particles, 250 × 4.6 mm, C18 column (35 ℃) at a flow rate of 1.0 mL/min and eluted with 0.1% formic acid aqueous solution (A) and 0.1% formic acid acetonitrile (B), and the gradient elution was 0–7 min, 23% B; 7–17 min, 23–80% B; 17–20 min, 80–100% B; 20–30 min, 100% B.

来源文献:Wen Y, Zhan Y, Tang S, Liu F, Wu R, Kong P, Li Q, Tang X. Zhizhu decoction alleviates slow transit constipation by regulating aryl hydrocarbon receptor through gut microbiota. Pharm Biol. 2023 Dec;61(1):111-124. doi: 10.1080/13880209.2022.2157020. Erratum in: Pharm Biol. 2023 Dec;61(1):1413. PMID: 36562308; PMCID: PMC9793913.


备注:
以上数据均来自公开文献, Solarbio暂未进行独立验证, 仅供参考。
These protocols are for reference only. Solarbio does not independently validate these methods.

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