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全自動脂(zhi)肪酸值測(ce)定儀:針對(dui)GB/T 15684-2015 《谷物碾(nian)磨制品 脂肪酸值的測定》在(zai)谷物(wu)脂(zhi)(zhi)肪酸(suan)(suan)值實際(ji)測定(ding)(ding)(ding)(ding)工作中存在(zai)的(de)(de)(de)(de)(de)滴(di)定(ding)(ding)(ding)(ding)終點顏色(se)變(bian)(bian)化(hua)不(bu)明顯、不(bu)利于人眼觀(guan)察(cha)而造成同(tong)(tong)一樣品不(bu)同(tong)(tong)人測定(ding)(ding)(ding)(ding)或不(bu)同(tong)(tong)試(shi)驗室測定(ding)(ding)(ding)(ding)的(de)(de)(de)(de)(de)結(jie)(jie)果(guo)(guo)重(zhong)現(xian)性差、可比性差的(de)(de)(de)(de)(de)現(xian)狀,我公(gong)司(si)進行(xing)了(le)稻米(mi)脂(zhi)(zhi)肪酸(suan)(suan)值的(de)(de)(de)(de)(de)測定(ding)(ding)(ding)(ding)方(fang)法及相關儀器設備的(de)(de)(de)(de)(de)研(yan)究(jiu)(jiu)開發。該儀器的(de)(de)(de)(de)(de)研(yan)制歷時2年(nian),在(zai)找出原有方(fang)法所存在(zai)問題(ti)的(de)(de)(de)(de)(de)基(ji)礎上(shang),分別對原有方(fang)法進行(xing)改進,做了(le)改換指示劑、返滴(di)定(ding)(ding)(ding)(ding)法等方(fang)法的(de)(de)(de)(de)(de)發展(zhan)研(yan)究(jiu)(jiu),比對了(le)測定(ding)(ding)(ding)(ding)結(jie)(jie)果(guo)(guo)和(he)終點判定(ding)(ding)(ding)(ding)的(de)(de)(de)(de)(de)難易程度(du)(du)。研(yan)究(jiu)(jiu)結(jie)(jie)果(guo)(guo)表明:采用儀器法更適合于糧食脂(zhi)(zhi)肪酸(suan)(suan)值的(de)(de)(de)(de)(de)測定(ding)(ding)(ding)(ding),結(jie)(jie)合堿性溶劑的(de)(de)(de)(de)(de)分辨效應,提高了(le)終點顏色(se)變(bian)(bian)化(hua)的(de)(de)(de)(de)(de)靈(ling)敏度(du)(du),便于觀(guan)察(cha),同(tong)(tong)時采用由(you)光(guang)學傳感系統、計算機(ji)控制系統等組成的(de)(de)(de)(de)(de)脂(zhi)(zhi)肪酸(suan)(suan)值測定(ding)(ding)(ding)(ding)儀來響應測定(ding)(ding)(ding)(ding)滴(di)定(ding)(ding)(ding)(ding)終點的(de)(de)(de)(de)(de)顏色(se)變(bian)(bian)化(hua),確定(ding)(ding)(ding)(ding)滴(di)定(ding)(ding)(ding)(ding)終點,使得滴(di)定(ding)(ding)(ding)(ding)終點的(de)(de)(de)(de)(de)判定(ding)(ding)(ding)(ding)變(bian)(bian)得更準確、更一致,提高了(le)滴(di)定(ding)(ding)(ding)(ding)終點判定(ding)的靈敏度,使(shi)測定(ding)結果更(geng)準確,更(geng)具可(ke)比性,更(geng)客(ke)觀(guan)(guan)公正,同時有效地減小了操作過(guo)程中的人為誤差(cha),使(shi)脂肪酸值檢驗工(gong)作更(geng)加符合客(ke)觀(guan)(guan)實際。
全自動脂肪酸值(zhi)測定(ding)儀技術參數: 1、泵(beng)流量精度(du):相對標準偏(pian)差RSD≤1% 2、分辨率:0.01 mg KOH/100g 干物(wu)質(zhi) 3、噪(zao)聲(sheng):小于60dB 4、變異系數CV:脂肪酸值大于12mg/100g時,CV不大于4% 5、測(ce)量范圍:0-300mg KOH/100g 干物質(zhi) 6、吸液(ye)泵規格:10ml 7、吸液(ye)泵滴定速度(du):0.5ml/min-10ml/min(可(ke)調) 8、攪拌轉(zhuan)速(su):10-250r/min(可(ke)調) 9、樣(yang)品檢測時間:≤10min/樣(yang) 10、環境(jing)溫度(du):15℃-40℃ 11、重復性:≤2 mg/100g 12、電(dian)源電(dian)壓:AC220V±10V,50HZ 13、稻谷脂肪酸值:雙實驗差≤2mg/100g(滿足GB/T 20569-2006國家標準) 14、玉(yu)米脂肪酸值(zhi):雙實驗差≤2mg/100g(滿足GB/T20570-2015國家標(biao)準) 15、小麥粉:符合GB/T 5510國家標(biao)準要求(qiu)
★16、測試結果:由(you)單片機自(zi)動(dong)計算,5寸觸摸式液晶屏操控(無(wu)需(xu)電腦PC端操作(zuo)),顯示測試結果 ★17、結果保存:可(ke)通(tong)過(guo)儀器嵌入式內置熱敏打印(yin)機打印(yin)測試結果,也(ye)可(ke)通(tong)過(guo)RS232串口(kou)將數據傳入普通(tong)計算機保存 ★18、操(cao)(cao)作性:軟件自動完成頻率調(diao)節,人(ren)性化的逐步提示引導操(cao)(cao)作流程,也可通(tong)過串(chuan)口(kou)線連接(jie)PC機在Windows系(xi)統上位(wei)機軟件操(cao)(cao)作
功能特點: 1、5寸電容(rong)觸摸屏; 2、存儲數據可達(da)一萬多條; 3、單通道測(ce)試; 4、自動滴定裝置,避(bi)免人工誤差(cha); 5、測定(ding)結果自動生(sheng)成(cheng),自動打印,無需人工干預; 6、超大顯示屏,測定結果易于(yu)觀(guan)察; 7、帶校準功能(neng); 8、觸摸屏操作或Windows系統上位機(ji)軟件(jian)操作。