氣體 | 量程 | 分辨率 | 傳感器類型 |
O2 | 0- 25% | 0.1% | 電化學(xué) |
CO | 0- 2000ppm | 1ppm | 電化學(xué) |
H2S | 0- 100ppm | 1ppm | 電化學(xué) |
混合有毒(CO/H2S) | 0- 2000/0- 100ppm | 1ppm | 電化學(xué) |
CH4 | 0- 10000ppm | 1ppm | 半導(dǎo)體傳感器 |
CH4 | 0- 100%LEL | 1% | 催化燃燒 |
CH4導(dǎo)傳感器 | 0- 100%VOL | 1% | 熱導(dǎo)傳感器 |
本店的產(chǎn)品不能一一列出敬請(qǐng)來(lái)電或QQ垂詢 。購(gòu)買前請(qǐng)?jiān)儍r(jià)確認(rèn)
手機(jī):18962647923
Q Q:1220154989
昆山市花橋鎮(zhèn)英治電子商行051282101660是一家以專業(yè)批發(fā)集成電路的商貿(mào)公司,從事IC貿(mào)易服務(wù)多年。在深圳、上海、昆山、武漢等地設(shè)有辦事機(jī)構(gòu)。并且專業(yè)生產(chǎn)開發(fā)流量計(jì),密度儀,溫控儀,等專業(yè)設(shè)備。
并先后取得產(chǎn)品線包括 美國(guó)GE nova壓力傳感器.FIGARO日本費(fèi)加羅.德國(guó)HARTING接口連接器.ALCO艾柯 EMERSON艾默生.
美國(guó)FLUKE福祿克.英國(guó)GMI.美國(guó)華瑞.英國(guó)凱恩.日本理研.德國(guó)SIGMA等各種國(guó)外品牌的儀器儀表;魇縆EYENCE.固態(tài)繼電器.OMRON歐姆龍.日本神榮SHINYEI 、芝蒲SHIBAURA、 霍尼韋爾HONEYWELL .美國(guó)celtron傳感器.日本NMB傳感器.日本NTS傳感器.臺(tái)灣明緯開關(guān)電源..IGBT模塊..德國(guó)murr穆爾.傳感器.溫濕度傳感器,DS18B20傳感器.PT100和PT1000傳感器.ISD語(yǔ)音芯片.三相整流橋.整流橋.可控硅.語(yǔ)音芯片.二三極管.電阻.電容日本,美國(guó)進(jìn)口傳感器系列。、IGBT系列模塊等品牌的特許經(jīng)銷權(quán)。同時(shí)在軍、工級(jí)產(chǎn)品方面,也有著良好的供貨渠道。我司經(jīng)營(yíng)以備現(xiàn)為主,亦可接受長(zhǎng)線訂單。
百分之百保證原廠全新品質(zhì)。不論數(shù)量,歡迎查詢。
HNLC-ZGF智能直流高壓發(fā)生器特別適用于電力部門、廠礦企業(yè)動(dòng)力部門、科研單位、鐵路、化工、發(fā)電廠等對(duì)氧化鋅避雷器、磁吹避雷器、電力電纜、發(fā)電機(jī)、變壓器、開關(guān)等設(shè)備的直流高壓現(xiàn)場(chǎng)試驗(yàn)。
產(chǎn)品特征
1、直流高壓發(fā)生器具有紋波系數(shù)小、電壓輸出穩(wěn)定可靠、無(wú)噪音、可靠性好 2、具有過(guò)壓、過(guò)流、零壓?jiǎn)?dòng)和故障保護(hù)功能,電壓保護(hù)值可整定,顯示直觀 3、電壓、電流采用數(shù)碼顯示,且通電源就有讀數(shù),方便監(jiān)視輸出狀態(tài) 4、具有0.75倍電壓換算,方便測(cè)試氧化鋅避雷器 ,輕輕一按無(wú)須計(jì)算。本儀器控制箱上有75%的電壓功能鍵,在做避雷器試驗(yàn)時(shí),當(dāng)電流升到1000uA時(shí)、就按下0.75UDC--1mA的按鈕,這時(shí)電壓表、電流表所顯示的值就是75%的數(shù)據(jù),做完后應(yīng)立即將調(diào)壓電位器回到零位,并應(yīng)立即按綠色按鈕,切斷高壓并關(guān)閉電源開關(guān),再做其它的試驗(yàn)。 5、產(chǎn)品結(jié)構(gòu)緊湊、體積小、攜帶方便 、可靠、功能齊全,而且重量更輕、操作簡(jiǎn)便、功能齊全,還可野外使用。
產(chǎn)品別稱
中頻直流高壓發(fā)生器、直高發(fā)、直流高壓發(fā)生器、高壓發(fā)生器
技術(shù)參數(shù)
1.電源:AC220V±10%,50Hz±1%
2.額定輸出電壓:0--60kV、120kV、200kV、300kV、400kV、600kV、800kV
3.額定輸出電流:2mA、3mA、5mA、8mA、10mA
4.輸出電流指示精度:<1
5.輸出電壓指示精度:<1
6.0.75倍輸出電壓指示精度:<1,帶鎖存
7.紋波系數(shù):≤0.5
更多直流高壓發(fā)生器信息來(lái)源:http://www.whhnlc.com/home/21
接地引下線導(dǎo)通測(cè)試儀 http://www.whhnlc.com/home/56 變頻串聯(lián)諧振裝置 http://www.whhnlc.com/home/category/26
北京耐芯威科技有限公司電 話:62968731/82563291/62961347注:由于產(chǎn)品太多價(jià)格不能一一注明,如有意向請(qǐng)與我們的銷售部聯(lián)系,謝謝。
供應(yīng)全新原裝M53273P、M51958、M5165AL-12、M51032P、M5247L、M52685FP、M52653FP、MA8150L、MAN3440A(J)、MAFRIN0461、MAX1016CSA、MASWSS0060、MASWSS0040TR-3000等更多型號(hào)可登錄公司官網(wǎng)http://www.ic118.com/查詢,或通過(guò)以上聯(lián)系方式來(lái)電咨詢!
沈陽(yáng)松下蓄電池有限公司是松下集團(tuán)唯一的中小型閥控式鉛酸蓄電池生產(chǎn)基地。采用日本松下公司的生產(chǎn)技術(shù)及設(shè)備,提供高性能的蓄電池產(chǎn)品.
性能描述;
1、安全性能好:正常使用下無(wú)電解液漏出,無(wú)電池膨脹及破裂。
2、放電性能好:放電電壓平穩(wěn),放電平臺(tái)平緩。
3、耐震動(dòng)性好:完全充電狀態(tài)的電池完全固定,以4mm的振幅,16.7HZ的 頻率震動(dòng)1小時(shí),無(wú)漏液,無(wú)電池膨脹及破裂,開路電壓 正常。
4、耐沖擊性好:完全充電狀態(tài)的電池從20CM高處自然落至1CM厚的硬木板 上3次無(wú)漏液,無(wú)電池膨脹及破裂,開路電壓正常。
5、耐過(guò)放電性好:25攝氏度,完全充電狀態(tài)的電池進(jìn)行定電阻放電3星期 (電阻只相當(dāng)于該電池1CA放電要求的電阻),恢復(fù)容 量在75%以上.
6、耐充電性好:25攝氏度,完全充電狀態(tài)的電池0.1CA充電48小時(shí),無(wú)漏 液,無(wú)電池膨脹及破裂,開路電壓正常,容量維持率在上 95%以.
7、耐大電流性好:完全充電狀態(tài)的電池2CA放電5分鐘或10CA放電5秒 鐘。無(wú)導(dǎo)電部分熔斷,無(wú)外觀變形。
UPS的分類
UPS作為計(jì)算機(jī)的重要外設(shè),已從最初的提供后備時(shí)間單一功能發(fā)展到今天的提供后備時(shí)間及改善電網(wǎng)質(zhì)量的雙重功能,在保護(hù)計(jì)算機(jī)數(shù)據(jù),改善電網(wǎng)質(zhì)量,防止停電和電網(wǎng)污染對(duì)用戶造成危害等方面起著很重要的作用。目前,市場(chǎng)上的UPS品牌種類繁多,但可從電路主結(jié)構(gòu)、后備時(shí)間、輸入輸出方式、輸出波形和輸出容量等五方面對(duì)其進(jìn)行分類,其中從電路主結(jié)構(gòu)進(jìn)行分類是現(xiàn)行最被接受的。
早期的后備式UPS在市電供電正常時(shí),市電直接通過(guò)交流旁路和轉(zhuǎn)換開關(guān)供電于負(fù)載,交流旁路相當(dāng)于一條導(dǎo)線,逆變器不工作,此時(shí)供電效率高但質(zhì)量差。在近年的后備式UPS往往在交流旁路上配置了交流穩(wěn)壓電路和濾波電路加以改善。當(dāng)市電異常(市電電壓、頻率超出后備式UPS允許的輸入范圍或市電中斷)時(shí),后備式UPS通過(guò)轉(zhuǎn)換開關(guān)切換到電池狀態(tài),逆變器進(jìn)入工作狀態(tài),此時(shí)輸出波形為交流正弦波或方波。后備式UPS存在切換時(shí)間,一般為4毫秒~10毫秒,但對(duì)一般的計(jì)算機(jī)設(shè)備的工作不會(huì)造成影響。由于后備式UPS工作時(shí)輸出波形大都為方波,供電質(zhì)量相對(duì)較差,只適用于要求不高的場(chǎng)合,并且功率一般都較小,多在 2000瓦以下。但后備式UPS產(chǎn)品有著價(jià)格優(yōu)勢(shì),比較便宜,適合于小型辦公企業(yè)和家庭用戶使用。
ups電源如何選購(gòu)
UPS產(chǎn)品是金融機(jī)構(gòu)計(jì)算機(jī)機(jī)房的必備設(shè)備,屬一次性投資的耐用產(chǎn)品。許多用戶對(duì)UPS產(chǎn)品標(biāo)稱的各個(gè)單項(xiàng)指標(biāo)和使用的技術(shù)缺乏全面客觀的了解。
、先確認(rèn)您需要何種UPS?目前UPS種類有幾種:
1. 后備式UPS 在市電正常時(shí)直接由市電向負(fù)載供電, 當(dāng)市電超出其工作范圍或停電時(shí)通過(guò)轉(zhuǎn)換開關(guān)轉(zhuǎn)為電池逆變供電。其特點(diǎn)是:結(jié)構(gòu)簡(jiǎn)單,體積小,成本低,但輸入電壓范圍窄,輸出電壓穩(wěn)定精度差,有切換時(shí)間,且輸出波形一般為方波。
2. 在線式UPS 在市電正常時(shí),由市電進(jìn)行整流提供直流電壓給逆變器工作,由逆變器向負(fù)載提供交流電,在市電異常時(shí),逆變器由電池提供能量,逆變器始終處于工作狀態(tài),保證無(wú)間斷輸出。其特點(diǎn)是,有極寬的輸入電壓范圍,無(wú)切換時(shí)間且輸出電壓穩(wěn)定精度高,特別適合對(duì)電源要求較高的場(chǎng)合,但是成本較高。目前,功率大于3KVA的UPS幾乎都是在線式UPS。
3. 在線互動(dòng)式UPS 在市電正常時(shí)直接由市電向負(fù)載供電,當(dāng)市電偏低或偏高時(shí),通過(guò)UPS內(nèi)部穩(wěn)壓線路穩(wěn)壓后輸出,當(dāng)市電異;蛲k姇r(shí),通過(guò)轉(zhuǎn)換開關(guān)轉(zhuǎn)為電池逆變供電。其特點(diǎn)是:有較寬的輸入電壓范圍,噪音低,體積小等特點(diǎn),但同樣存在切換時(shí)間。
4. UPS按照輸出容量大小劃分UPS按輸入/輸出方式可分為三類:?jiǎn)蜗噍斎?單相輸出、三相輸入/單相輸出、三相輸入/三相輸出。單相電是指由一根火線、一根零線和一根地線組成的供電系統(tǒng);三相電是由三根火線、一根零線和一根地線組成的供電系統(tǒng),其中兩根火線之間的電壓(即線電壓)為380V,而火線與零線之間的電壓(即相電壓)為220V。對(duì)于用戶來(lái)說(shuō),三相供電其市電配電和負(fù)載配電容易,每一相都承當(dāng)一部分負(fù)載電流,因而中、大功率UPS多采用三相輸入/單相輸出或三相輸入/三相輸出的供電方式。
5. 智能型UPS 是當(dāng)今UPS的一大發(fā)展趨勢(shì),隨著UPS在網(wǎng)絡(luò)系統(tǒng)上應(yīng)用,網(wǎng)絡(luò)管理者者強(qiáng)調(diào)整個(gè)網(wǎng)絡(luò)系統(tǒng)為保護(hù)對(duì)象,希望整個(gè)網(wǎng)絡(luò)系統(tǒng)在供電系統(tǒng)出現(xiàn)故障時(shí),仍然可以繼續(xù)工作而不中斷。因此UPS內(nèi)部配置微處理器使之智能化是UPS的新趨勢(shì),UPS內(nèi)部硬件與軟件的結(jié)合,大幅度提高了UPS的功能,可以監(jiān)控UPS的運(yùn)行工作狀態(tài),如:UP
S輸出電壓頻率,電網(wǎng)電壓頻率、電池狀態(tài)以及故障記錄等。還可以通過(guò)軟件對(duì)電池進(jìn)行檢測(cè)、自動(dòng)放電充電,以及遙控開關(guān)機(jī)等。網(wǎng)絡(luò)管理者就可以根據(jù)信息資料分析供電質(zhì)量,依據(jù)實(shí)際情況采取相應(yīng)的措施。當(dāng)UPS檢測(cè)出供電電網(wǎng)中斷時(shí),UPS自動(dòng)切換到電池供電,在電池供電能力不足時(shí)立即通知服務(wù)器做關(guān)機(jī)的準(zhǔn)備工作并在電池耗盡前自行關(guān)機(jī)。智能型UPS通過(guò)接口與計(jì)算機(jī)進(jìn)行通訊,從而使網(wǎng)絡(luò)管理員能夠監(jiān)控UPS,因此其管理軟件的功能就顯得極其重要。
、確定您所需UPS之功率(VA)值
您所保護(hù)之設(shè)備均會(huì)標(biāo)示其功率(w)值或電流(A)值。
如是功率(w)值÷0.7=VA值
如市電流(A)值×220=VA值
將所有設(shè)備VA值相加得到總VA值,將總VA值加上20%~30%預(yù)備容量即得到UPS VA值
、選購(gòu)ups一個(gè)重要的因素還得考慮到那ups的備用時(shí)間和ups品牌.
UPS依備用時(shí)間可分為標(biāo)準(zhǔn)型及長(zhǎng)效型。標(biāo)準(zhǔn)型UPS備用時(shí)間為5-15分鐘,長(zhǎng)效型為1-8小時(shí)。假如您的設(shè)備停電時(shí),只需要存盤、退出即可,那選用標(biāo)準(zhǔn)型UPS;假如您的設(shè)備停電時(shí),仍須長(zhǎng)時(shí)間運(yùn)轉(zhuǎn),那須選用長(zhǎng)效型UPS。假如您確定了UPS種類、容量、備用時(shí)間;接下來(lái)您須確定的是選購(gòu)哪一品牌的UPS。這里給您的建議是,您須考慮這品牌的知名度及售后保證條款,如保修年限、維修響應(yīng)時(shí)間等.
PC-310標(biāo)配資料(1—5):
1、臺(tái)灣SUNTEX的 PC-310控制器一臺(tái)
2、瑞士METTLER品牌的PH電極HA405-90、405-60或ORP電極(PT4805-60)一支.
(特別說(shuō)明:PH電極405-60測(cè)量范圍為PH:0.00—12.00,二點(diǎn)滲透,容易堵塞,不適用于高污染污水;HA405-90測(cè)量范圍為PH:0.00—14.00,環(huán)狀輸出,適用于高污染污水使用.)
3、臺(tái)灣SUNTEX的安裝附件一套(PP-100A)
4、臺(tái)灣SUNTEX的PH標(biāo)準(zhǔn)淮二瓶(PH=7.00,PH=4.01各一瓶,500ml)
5、屏蔽電極專用電纜線7-RG-58,15米.
飽和脂肪酸和酯 / 不飽和脂肪酸和酯 / 混合脂肪酸標(biāo)準(zhǔn)品 / 不飽和脂肪酸 / 不飽和脂肪酸和酯標(biāo)準(zhǔn)品 / 脂肪酸和酯 / 甘油酯
PRODUCTS Fatty Acids and Ester Homologs(Saturated and Unsaturated, Odd and Even – Chains)Acid-Methyl Esters – Ethyl Esters GlyceridesTriglycerides – Diglycerides – Monoglycerides Acid Chlorides Fatty Alcohols Fatty Acetates Cholesteryl Esters Alkyl-Methane-Sulfonates Soaps of Fatty Acids Wax Esters
STANDARD REFERENCE MIXTURES GLC Mixtures GLC NIH Series GLC Alcohol Series GLC Acetate Series GLC Trigylceride Series GLC Special Reference Standards TLC Mixtures
NU-CHEK PRODUCES A SATURATED SERIES OF FATTY ACID AND ESTER HOMOLOGS FROM C3:0 THROUGH C24:0 AND ARE ALWAYS IN STOCK AND READY FOR SHIPMENT. BELOW ARE A FEW EXAMPLES OF OUR SATURATED SERIES. Acids and Esters Purity greater than 99%+ unless otherwise listed.
C No. CHAIN | FATTY ACID | PHYSICAL DATA" | COMPOUND DERIVATIVE | CODE |
C11:0 | Undecanoic (Hendecanoic) | mw 186.30 bp15 164° mp 29.3° | Acid Methyl Ethyl | N-11-A N-11-M N-11-E |
C12:0 | Dodecanoic (Lauric) | mw 200.35 bp1 131° mp 44.2° | Acid Methyl Ethyl | N-12-A N-12-M N-12-E |
C13:0 | Tridecanoic | mw 214.35 bp1 140° mp 41.5° | Acid Methyl Ethyl | N-13-A N-13-M N-13-E |
C14:0 | Tetradecanoic (Myristic) | mw 228.38 bp1 149° mp 54.4° | Acid Methyl Ethyl | N-14-A N-14-M N-14-E |
C15:0 | Pentadecanoic | mw 242.41 bp1 158° mp 52.3° | Acid Methyl Ethyl | N-15-A N-15-M N-15-E |
C16:0 | Hexadecanoic (Palmitic) | mw 256.43 bp1 170° mp 61.3° | Acid Methyl Ethyl | N-16-A N-16-M N-16-E |
C17:0 | Heptadecanoic (Margaric) | mw 270.48 bp100 232° mp 61.3° | Acid Methyl Ethyl | N-17-A N-17-M N-17-E |
C18:0 | Octadecanoic (Stearic) | mw 284.48 bp15 230° mp 69.6° | Acid Methyl Ethyl | N-18-A N-18-M N-18-E |
Purity greater than 99%+ unless otherwise listed.
C No. CHAIN | FATTY ACID | PHYSICAL DATA" | COMPOUND DERIVATIVE | CODE |
C18:0 | 12-Hydroxy Stearic | mw 300.48 | Acid Methyl Ethyl | N-18HY-A N-18HY-M N-18HY-E |
C19:0 | Nonadecanoic | mw 298.51 bp10 203° mp 68.65° | Acid Methyl Ethyl | N-19-A N-19-M N-19-E |
C20:0 | Eicosanoic (Arachidic) | mw 312.54 bp1 203° mp 75.35° | Acid Methyl Ethyl | N-20-A N-20-M N-20-E |
C21:0 | Heneicosanoic | mw 326.57 bp1 205° mp 74.3° | Acid Methyl Ethyl | N-21-A N-21-M N-21-E |
C22:0 | Docosanoic (Behenic) | mw 340.59 bp10 306° mp 79.953° | Acid Methyl Ethyl | N-22-A N-22-M N-22-E |
C23:0 | Tricosanoic | mw 354.61 mp 79.1° | Acid Methyl Ethyl | N-23-A N-23-M N-23-E |
C24:0 | Tetracosanoic (Lignoceric) | mw 368.64 mp 84.15° | Acid Methyl Ethyl | N-24-A N-24-M N-24-E |
UNSATURATED SERIES Straight chain fatty acids, mono basic, aliphatic, terminating in a single carboxyl group and of reduced hydrogen content than their saturated counterparts, constitute the ethylenic family of unsaturated fatty acids. They are of considerable importance since linkage with other chemical radicals is readily accomplished at the double bond positions. Multiple unsaturation is found in almost all natural occurring vegetable and animal fats. Research in recent years has shown them to be of great significance. Double bonds are susceptible to oxidation so that stability is a factor to be reckoned with (especially polyunsaturated compounds) when researching unsaturated fatty acids or their corresponding esters. Highly purified unsaturated compounds prepared in our laboratory are always flushed several times with nitrogen, sealed in glass under vacuum and stored under cold conditions until ready for shipment. Nu-Chek suggests that when your shipment is received, they should be stored under cold conditions until ready for use. Once vial is opened protect with N2 and use as soon as possible.
NU-CHEK ALSO PRODUCES AN UNSATURATED SERIES OF FATTY ACIDS AND ESTER HOMOLOGS. AS SEEN BELOW, NU-CHEK REPARES MANY OMEGA 3 AND OMEGA 6 POLYUNSATURATED FATTY ACIDS. BELOW ARE A FEW OF NU-CHEK'S CORE PRODUCTS, ARACHIDONIC ACID, EICOSAPENTAENOIC ACID, DOCOSAPENTAENOIC ACID, AND DOCOSAHEXAENOIC ACID. ALL ARE >99% BY GC AND TLC ANALYSIS. UNSATURATED SERIES Acids and Esters
C No. CHAIN | FATTY ACID | PHYSICAL DATA" | COMPOUND DERIVATIVE | CODE |
C20:3 | 8-11-14 Eicosatrienoic (Homogamma Linolenic) | 8 cis 11 cis 14 cis mw 306.53 | Acid Methyl Ethyl | U-69-A U-69-M U-69-E |
C20:3 | 11-14-17 Eicosatrienoic | 11 cis 14 cis 17 cis mw 306.53 | Acid Methyl Ethyl | U-70-A U-70-M U-70-E |
C20:4 | 5-8-11-14 Eicosatetraenoic (Arachidonic) | 5 cis 8 cis 11 cis 14 cis mw 304.52 | Acid Methyl Ethyl | U-71-A U-71-M U-71-E |
C20:5 | 5-8-11-14-17 Eicosapentaenoic (EPA) | all cis mw 302.52 | Acid Methyl Ethyl | U-99-A U-99-M U-99-E |
C22:5 | 7-10-13-16-19 Docosapentaenoic (DPA) | all cis mw 330.57 | Acid Methyl Ethyl | U-101-A U-101-M U-101-E |
C20:4 | Arachidonic 90%+ | all cis mw 304.52 | Acid Methyl Ethyl | U-72-A U-72-M U-72-E |
C22:1 | 13-Docosenoic (Erucic) | 13 cis mp 33° mw 338.59 | Acid Methyl Ethyl | U-79-A U-79-M U-79-E |
C22:1T | 13-Transdocosenoic (Brassidic) | 13 trans mp 60° mw 338.59 | Acid Methyl Ethyl | U-80-A U-80-M U-80-E |
C No. CHAIN | FATTY ACID | PHYSICAL DATA" | COMPOUND DERIVATIVE | CODE |
C22:2 | 13-16 Docosadienoic | 13 cis 16 cis mw 336.59 | Acid Methyl Ethyl | U-81-A U-81-M U-81-E |
C22:3 | 13-16-19 Docosatrienoic | 13 cis 16 cis 19 cis mw 334.58 | Acid Methyl Ethyl | U-82-A U-82-M U-82-E |
C22:4 | 7-10-13-16 Docosatetra Enoic | 7 cis, 10 cis 13 cis, 16 cis mw 332.57 | Acid Methyl Ethyl | U-83-A U-83-M U-83-E |
C22:6 | 4-7-10-13-16-19 Docosahexaenoic (DHA) | all cis mw 328.57 | Acid Methyl Ethyl | U-84-A U-84-M U-84-E |
C21:1 | 12-Heneicosenoic | 12 cis mw 324.57 | Acid Methyl Ethyl | U-85-A U-85-M U-85-E |
C21:2 | 12-15 Heneicosadienoic | 12-15 mw 322.57 | Acid Methyl Ethyl | U-86-A U-86-M U-86-E |
C23:1 | 14-Tricosenoic | 14 cis mw 352.60 | Acid Methyl Ethyl | U-87-A U-87-M U-87-E |
C24:1 | 15-Tetracosenoic (Nervonic) | 15 cis mw 366.63 | Acid Methyl Ethyl | U-88-A U-88-M U-88-E |
GLYCERIDES The distribution of random fatty acids in naturally occurring fats and oils in the form of triglycerides dates back to antiquity. Indeed, the use of soap-cosmetics and oil lubricants dates back thousands of years. While we at Nu-Chek do not profess to go back quite that far, we would like to say that we have been synthesizing pure gylceride standards for the scientific community for over thirty years. The general procedure for all our triglyceride preparations is well exemplified in Nu-Chek's Triolein. Our starting material is chromatographically pure Methyl Oleate (isolated from the best virgin olive oil available) which is interesterified for the production of crude Triolein. To assure geometricstability of cis double bonds, the material is further purified by such physical techniques as low temperature crystallization and column chromatography. The final purity is followed both by gas liquid and thin layer chromatography. Other triglycerides are prepared in a similar manner commencing with the particular oil which contains the best concentrates of the specific ester required.
CHAIN | GLYCERIDE | CODE |
C14:1 9 cis | Tritetradecenoin (Myristolein) Dimyristolein 1-3 Isomer Monomyristolein M.W.717.18 | T-205 D-206 D-207 M-209 |
C16:1 9 cis | Trihexadecenoin (Palminitolein) Dipalmitolein 1-3 Isomer Monopalmitolein M.W.801.34 | T-215 D-216 D-217 M-219 |
C18:1 9 cis | Trioctadecenoin (Olein) Diolein 1-3 Isomer Monoolein M.W.885.50 | T-235 D-236 D-237 M-239 |
C18:2 cis 9 cis 12 cis | Trioctadecadienoin (Linolein) Dilinolein 1-3 Isomer Monolinein M.W.879.50 | T-250 D-251 D-252 M-254 |
CHAIN | GLYCERIDE | CODE |
C18:3 9 cis 12 cis 15 cis | Tritetradecenoin (Linolenin) Dilinolenin 1-3 Isomer Monolinolenin M.W.873.50 | T-260 D-261 D-262 M-264
|
C20:4 all cis | 5-8-11-14 Trieicosatetraenoin (Arachidonin) Diarachidonin 1-3 Isomer Monoarachidonin M.W. 951.66 | T-295 D-296 D-297 M-299 |
C20:5 | 5-8-11-14-17 all cis Trieicosapentaenoin | T-325 |
C22:6 all cis 4-7-10 13-16-19 | Tridocosahexaenoin Didocosahexaenoin 1-3 Isomer Monodocosahexaenoin M.W. 1023.82 | T-310 D-311 D-312 M-314 |
NU-CHEK HAS BEEN PREPARING GLC AND TLC STANDARDS FOR OVER 38 YEARS. WE START BY PURIFYING EACH INDIVIDUAL FATTY ACID METHY LESTER TO >99%, THEN INCORPORATING THEM INTO OUR STANDARDS. WE HAVE OVER 130 DIFFERENT STANDARDS TO CHOOSE FROM. IF YOU STILL CAN'T FIND WHAT YOU ARE LOOKING FOR, JUST CALL, FAX OR E-MAIL. WE HAVE CUSTOM SYNTHESIS AVAILABLE AND CAN MAKE ANYCONCENTRATION OF FATTY ACIDS WHICH NU-CHEK SELLS. BELOW ARE A FEW COMMON GLC'S WHICHCAN BE USED TO IDENTIFY VARIOUS SEED OILS OR ANIMAL FAT.
CHAIN | ITEM | CODE | % BY WT. | SUITABLE OIL |
C16:0 C18:0 C18:1 C18:2 C18:3 C20:0 | Methyl Palmitate Methyl Stearate Methyl Oleate Methyl Linoleate Methyl Linolenate Methyl Arachidate | 15A | 6.0 3.0 35.0 50.0 3.0 3.0 | Corn, PoppySeed,Cotton Seed, Soybean, Walnut, Safflower, Rapok, Sunflower, Rice, Bran, Sesame |
C16:0 C18:0 C18:1 C18:2 C18:3 | Methyl Palmitate Methyl Stearate Methyl Oleate Methyl Linoleate Methyl Linolenate | 16A | 7.0 5.0 18.0 36.0 34.0 | Linseed, Perilla, Hempseed, Rubberseed |
C14:0 C16:0 C18:0 C18:1 C18:2 C18:3 C20:0 C22:0 C22:1 C24:0 | Methyl Myristate Methyl Palmitate Methyl Stearate Methyl Oleate Methyl Linoleate Methyl Linolenate Methyl Arachidate Methyl Behenate Methyl Erucate Methyl Lignocerate | 17A | 1.0 4.0 3.0 45.0 15.0 3.0 3.0 3.0 20.0 3.0 | Peanut, Rapeseed, Mustardseed |
C16:0 C18:0 C18:1 C18:2 | Methyl Palmitate Methyl Stearate Methyl Oleate Methyl Linoleate | 18A | 11.0 3.0 80.0 6.0 | Olive, Teaseed, Neatsfoot |
C8:0 C10:0 C12:0 C14:0 C16:0 C18:0 C18.1 C18.2 | Methyl Caprylate Methyl Caprate Methyl Laurate Methyl Myristate Methyl Palmitate Methyl Stearate Methyl Oleate Methyl Linoleate | 19A | 7.0 5.0 48.0 15.0 7.0 3.0 12.0 3.0 | Coconut, Palm Kernel, Babassu, Ouri-Curi |
C14:0 C16:0 C16:1 C18:0 C18:1 C18:2 C18:3 | Methyl Myristate Methyl Palmitate Methyl Palmitoleate Methyl Stearate Methyl Oleate Methyl Linoleate Methyl Linolenate | 20A | 2.0 30.0 3.0 14.0 41.0 7.0 3.0 | Lard, Beef Tallow, Mutton Tallow, Palm |