阿魏酸

    
分析標(biāo)準(zhǔn)品,標(biāo)準(zhǔn)物質(zhì),見證書

Ferulic acid

源葉
BW10001 一鍵復(fù)制產(chǎn)品信息
537-98-4
C10H10O4
194.18
MFCD00004400
反式阿魏酸;反式4-羥基-3-甲氧基肉桂酸;4-羥基-3-甲氧基苯丙烯酸;咖啡酸-3-甲醚
貨號 規(guī)格 價(jià)格 上海 北京 武漢 南京 購買數(shù)量
BW10001-50mg 分析標(biāo)準(zhǔn)品,標(biāo)準(zhǔn)物質(zhì),見證書 ¥180.00 >10 - - -
產(chǎn)品介紹 參考文獻(xiàn)(58篇) 質(zhì)檢證書(COA) 摩爾濃度計(jì)算器 相關(guān)產(chǎn)品

產(chǎn)品介紹

   本標(biāo)準(zhǔn)物質(zhì)主要用于測量儀器校準(zhǔn),分析方法評價(jià)和質(zhì)量控制,以及藥品、食品等相關(guān)領(lǐng)域相應(yīng)成分含量測定。

 

一、樣品制備

本標(biāo)準(zhǔn)物質(zhì)候選物是通過定制相應(yīng)阿魏酸純品,采用重結(jié)晶、柱層析等方法進(jìn)一步純化后制得,經(jīng)化學(xué)結(jié)構(gòu)定性分析和初步理化分析滿足要求后,進(jìn)行干燥分裝。

阿魏酸:CAS號 537-98-4

 

 

二、溯源性及定值方法

經(jīng)方法確認(rèn)研究,本標(biāo)準(zhǔn)物質(zhì)采用高效液相色譜法-二極管陣列檢測器(HPLC-DAD)和定量核磁兩種不同原理方法定值方式測定候選物質(zhì)純度。通過使用滿足計(jì)量學(xué)特性要求的制備方法,測量方法和計(jì)量器具,保證標(biāo)準(zhǔn)物質(zhì)的量值溯源性。

 

 

三、特性量值及不確定度(不同批次略有差別,詳見證書)

編號

名稱

標(biāo)準(zhǔn)值(%)

不確定度(%)(k=2)

BW10001

阿魏酸

99.93

0.02

標(biāo)準(zhǔn)值的不確定度綜合考慮了主體純度定值結(jié)果、均勻性、穩(wěn)定性等引入的不確定度分量。

 

 

四、均勻性檢驗(yàn)及穩(wěn)定性考察

參照國家標(biāo)準(zhǔn)JJG 1006-94《一級標(biāo)準(zhǔn)物質(zhì)技術(shù)規(guī)范》,隨機(jī)抽取分裝后的樣品,采用高效液相色譜法-二極陣列檢測器(HPLC-DAD)對候選物進(jìn)行均勻性檢驗(yàn)、穩(wěn)定性考察,檢驗(yàn)結(jié)果表明均勻性和穩(wěn)定性良好。

本標(biāo)準(zhǔn)物質(zhì)最小取樣量為5mg。

本標(biāo)準(zhǔn)物質(zhì)有效期2年,研制單位將繼續(xù)監(jiān)測該標(biāo)準(zhǔn)物質(zhì)的穩(wěn)定性,有效期內(nèi)如發(fā)現(xiàn)量值變化,將及時(shí)通知用戶。

 

 

五、包裝、運(yùn)輸和貯存、使用及注意事項(xiàng)

1.包裝: 本標(biāo)準(zhǔn)物質(zhì)采用硼硅酸鹽玻璃安瓿瓶包裝,每瓶不少于50mg。

2.運(yùn)輸和貯存: 冰袋運(yùn)輸,運(yùn)輸時(shí)應(yīng)避免擠壓,碰撞;冷藏條件下貯存。

3.使用: 標(biāo)準(zhǔn)物質(zhì)開封后,應(yīng)盡快使用;二次使用不能再做標(biāo)準(zhǔn)物質(zhì)使用。

 

 

聲明

1.本標(biāo)準(zhǔn)物質(zhì)僅供實(shí)驗(yàn)室研究與分析測試工作使用。因用戶使用或存儲不當(dāng)所引起的投訴,不予承擔(dān)責(zé)任。

2.收到后請立即核對品種、數(shù)量和包裝,相關(guān)賠償只限于標(biāo)準(zhǔn)物質(zhì)本身,不涉及其他任何損失。

3.僅對加蓋“上海源葉生物質(zhì)檢專用章”的完整證書負(fù)責(zé)。請妥善保管此證書。

4.如需獲得更多與使用有關(guān)的信息,請與技術(shù)部門聯(lián)系。

 

儲存條件: 2-8℃
注意: 部分產(chǎn)品我司僅能提供部分信息,我司不保證所提供信息的權(quán)威性,僅供客戶參考交流研究之用。

參考文獻(xiàn)(58篇)

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摩爾濃度計(jì)算器

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