松(song)(song)(song)(song)(song)油(you)(you)(you)醇(chun)(Terpineol)是(shi)(shi)一種(zhong)重要的(de)香(xiang)(xiang)料(liao),分(fen)子式(shi)C10H18O。異(yi)構體一般分(fen)別(bie)稱作α-松(song)(song)(song)(song)(song)油(you)(you)(you)醇(chun),β-松(song)(song)(song)(song)(song)油(you)(you)(you)醇(chun),γ-松(song)(song)(song)(song)(song)油(you)(you)(you)醇(chun)。均天(tian)然存(cun)在于(yu)多種(zhong)精油(you)(you)(you)中。松(song)(song)(song)(song)(song)油(you)(you)(you)醇(chun)工業(ye)上以松(song)(song)(song)(song)(song)節(jie)油(you)(you)(you)為(wei)原料(liao)制(zhi)得,是(shi)(shi)一種(zhong)混合(he)(he)物,以a-松(song)(song)(song)(song)(song)油(you)(you)(you)醇(chun)為(wei)主(zhu)。為(wei)無色黏(nian)稠(chou)液體,沸點217℃。具有紫(zi)丁香(xiang)(xiang)花香(xiang)(xiang),稀釋后呈榜子香(xiang)(xiang)味。價格低廉(lian),是(shi)(shi)合(he)(he)成(cheng)香(xiang)(xiang)料(liao)中產量較大的(de)品種(zhong)之一。廣(guang)泛應用于(yu)配制(zhi)日(ri)用和食用香(xiang)(xiang)精 。松(song)(song)(song)(song)(song)油(you)(you)(you)醇(chun)以旋光、不旋光的(de)游離醇(chun)或其酯的(de)形式(shi)存(cun)在于(yu)松(song)(song)(song)(song)(song)油(you)(you)(you)、樟油(you)(you)(you)、橙花油(you)(you)(you)等精油(you)(you)(you)中。合(he)(he)成(cheng)松(song)(song)(song)(song)(song)油(you)(you)(you)醇(chun)由(you)松(song)(song)(song)(song)(song)節(jie)油(you)(you)(you)或蒎烯經水(shui)合(he)(he)及脫水(shui)反應制(zhi)得。
樣品說明(ming)
樣品為透明液體(ti),可以(yi)直接檢測。 |
---儀器(qi)配(pei)置---
1. V-310S庫侖(lun)法卡爾費休水分測定(ding)儀; 2. 電解(jie)池; 3. 電(dian)解電(dian)極; 4. 測量電極; | 5. 1ml注射器 6. 1ul進樣針 8. 分析天平萬(wan)分之一 |
---試劑---
滴定(ding)劑(ji):卡爾費休水試劑(ji), 溶劑(ji):; | 輔助試劑(ji):無; |
---儀器(qi)參(can)數---
控制精(jing)度:0.1ug 攪拌速度:20% 輔助功能(neng):方法保存,結果自(zi)動計算存儲,設備檢定,滴定延遲。
| 滴定(ding)延(yan)時:10秒 終點(dian)延時:自動 漂移扣除(chu):開啟 漂移值更新:自動 延時(shi)設置(zhi):可根據需要設置(zhi)延時(shi)滴(di)定(ding)、終點延時(shi)功(gong)能應對(dui)難溶樣(yang)品 |
---檢測方法---
1、用儀器的加液功(gong)能向電解池中加入30ml左右電解液。 2、使(shi)用1ul的進樣針,配合儀器電解功能,把電解池(chi)調(diao)平衡。 3、用1ml的(de)注射器,從樣品瓶(ping)中抽取(qu)1ml左右的(de)樣品,放入電(dian)子天平稱量(liang),稱量(liang)后(hou)從電(dian)解(jie)池進樣口注(zhu)入電(dian)解(jie)池。按開(kai)始(shi)鍵 4、儀器測量結束后,會自動(dong)顯(xian)示結果
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卡爾費(fei)休水份測(ce)定(ding)儀樣品(pin)測(ce)定(ding)記錄
樣品(pin)名稱: | 松(song)油醇(chun) | 環境濕度(du): | 38% | ||||||
環境(jing)溫度: | 19℃ | ||||||||
漂移(yi)校(xiao)正: | 滴定度: | ||||||||
測定次序
| 進樣量(liang) g | 滴定體(ti)積(ji) mL | 含水量 ug | 測定(ding)時長 m:s | 測定結(jie)果 ppm | ||||
1 | 0.2295 | 276.5 | 1:22 | 1204.793 | |||||
2 | 0.2126 | 256.4 | 1:28 | 1206.021 | |||||
3 | 0.2069 | 255.2 | 1:29 | 1233.446 | |||||
平均(jun)值 ppm: | 1214.7533 | ||||||||
RSD偏差(cha) %: | 1.3336% | ||||||||