美國Alfa 瘦肉精膠體金快速檢測卡
廣州健侖生物科技有限公司
我司長期供應(yīng)瘦肉精三聯(lián)檢測卡,本產(chǎn)品用于快速檢測動物尿樣、組織和飼料中鹽酸克倫特羅、萊克多巴胺、沙丁胺醇殘留,整個檢測過程只需要3-5分鐘左右,具有操作簡單,方便快捷,靈敏度高特異性強(qiáng)等特點。
瘦肉精檢測試劑進(jìn)口品牌:美國Alfa、美國US
我司還提供其它進(jìn)口或國產(chǎn)試劑盒:登革熱、瘧疾、流感、A鏈球菌、合胞病毒、腮病毒、乙腦、寨卡、黃熱病、基孔肯雅熱、克錐蟲病、違禁品濫用、肺炎球菌、軍團(tuán)菌、化妝品檢測、食品安全檢測等試劑盒以及日本生研細(xì)菌分型診斷血清、德國SiFin診斷血清、丹麥SSI診斷血清等產(chǎn)品。
歡迎咨詢
歡迎咨詢
瘦肉精檢測試劑盒、瘦肉精檢測試劑、瘦肉精檢測卡、瘦肉精檢測試紙、瘦肉精快速檢測卡、瘦肉精三聯(lián)檢測卡、鹽酸克倫特羅檢測卡、萊克多巴胺檢測卡、沙丁胺醇檢測卡
【瘦肉精的危害】
“瘦肉精”進(jìn)入動物體內(nèi)后主要分布于肝臟。肌肉中含量較肝臟低很多。人攝入后在體內(nèi)存留時間較長,其不良反應(yīng)主要有:可引起心率加速,特別是原有心律失常的病例更易發(fā)生心臟反應(yīng),可見心室早搏、ST段與T波幅壓低,還會發(fā)出肌肉震顫,引發(fā)四肢、面頸部骨骼肌震顫,尤其是交感神經(jīng)功能亢進(jìn)的病例更易發(fā)生。此外,還可引起代謝紊亂、血鉀降低,引起心慌、肌肉震顫、頭痛以及臉部潮紅等。對心率失常、高血壓、青光眼、糖尿病、甲狀腺機(jī)能亢進(jìn)等疾病的患者有較大危害。
美國Alfa 瘦肉精膠體金快速檢測卡
【產(chǎn)品簡介】
本產(chǎn)品為克倫特羅-萊克多巴胺-沙丁胺醇三合一膠體金快速檢測卡,用于定性檢測豬、牛、羊尿液、組織和飼料中的瘦肉精殘留,整個檢測過程只需要3-5分鐘左右。
【檢測限】
克倫特羅3ng/ml(3ppb),萊克多巴胺3ng/ml(3ppb),沙丁胺醇3ng/ml(3ppb)
【產(chǎn)品組成】
克倫特羅-萊克多巴胺-沙丁胺醇三合一膠體金快速檢測卡(40T/盒)
滴管(1個/袋)、干燥劑(1片/袋)
【樣品處理】
用干燥、潔凈的離心管或適當(dāng)容器采集50ml左右尿液。如果不立即檢測,待檢樣本在2-8℃存放,可保存24小時,注意避免腐壞造成失效或污染。出現(xiàn)陽性結(jié)果應(yīng)按法定程序分瓶封裝樣品用于確證法檢測。
【使用步驟】
1、測試前先完整閱讀說明書,使用前將檢測卡和待檢樣本溶液恢復(fù)至室溫4~30℃。
2、從原包裝袋中取出檢測卡,打開后請在一個小時內(nèi)盡快地使用。
3、將檢測卡平放,用滴管吸取待檢樣品溶液,緩慢垂直滴加2-3滴于加樣孔中,加樣后開始計時。
4、結(jié)果應(yīng)在3-5分鐘時讀取,其他時間判讀無效,根據(jù)示意圖判定結(jié)果。
【結(jié)果判斷】
- 陰性(-):兩條紫紅色條帶出現(xiàn)。表示樣品中不含有瘦肉精或其濃度低于檢測限。
- 陽性(+):檢測T線無顯色,則表示樣品中瘦肉精濃度高于檢測限。
- 無效:未出現(xiàn)質(zhì)控C線,表明操作過程不正確或檢測卡已失效。
【注意事項】
1、檢測卡請在保質(zhì)期內(nèi)一次性使用;
2、檢測時避免陽光直射和電風(fēng)扇直吹;
3、盡量不要觸摸檢測卡中央的白色膜面;
4、采樣滴管不可混用,以免交叉污染;
5、如果待檢樣本出現(xiàn)沉淀或渾濁物,請離心后再檢測;
6、試驗遇到的任何問題,請與供應(yīng)商。
【儲存及有效期】
原包裝應(yīng)儲存于4~40℃,陰涼避光干燥處,切勿冷凍;有效期24個月。有效期及批號見外包裝。
美國Alfa
FDA一開始就是個只認(rèn)數(shù)據(jù)的機(jī)構(gòu),所以不管是總統(tǒng)還是專家都沒能結(jié)束爭論,直到幾年以后基于當(dāng)時的研究結(jié)論才認(rèn)為糖精無害。不過到了1960年,一項研究卻又報道大量食用糖精會導(dǎo)致老鼠的膀胱癌,隨后的研究也表明糖精是一種可能的致癌物?;诖?,加拿大在1977年禁止了糖精的使用,F(xiàn)DA也準(zhǔn)備跟進(jìn)。不過當(dāng)時糖精是瘦肉精的合成糖替代品,這一打算受到了公眾尤其是糖尿病人的強(qiáng)烈反對。迫于公眾壓力,國會沒有批準(zhǔn)這項提案,只要求在含糖精的食品上注明“糖精可能是一種致癌物”。此后,關(guān)于糖精的安全性問題又得到了大量研究,但是始終沒有找到和人類癌癥有關(guān)的可靠證據(jù)。于是在1991年,F(xiàn)DA撤回了當(dāng)年的那份申請。到了2001年,*簽署法令,撤銷了糖精可能致癌的那個標(biāo)注。糖精從此在美國取得了*合法的身份。
云無心:我在美國碰到的食品添加劑
雖然批評聲一直不斷,不過美國市場上使用糖替代品的食品很多。畢竟,糖替代品解決了糖尿病人的痛苦,對普通人來說,少攝入熱量還有實實在在的好處,而那些傳說中的“害處”則有點“莫須有”。在我們公司里的咖啡機(jī)旁邊,糖替代品和普通糖都提供,據(jù)我觀察絕大多數(shù)人還是選用糖替代品。
乳化劑和增稠劑的故事
因為上面講到的原因,很多人希望飲料既好喝又便宜還不含熱量,所以無糖飲料有著廣闊的市場需求。我們?yōu)橐粋€飲料公司做過個項目,他們那種飲料每杯只有幾大卡的熱量(一般的飲料都是100大卡以上)。他們想在那種飲料中補(bǔ)充鐵元素,但是鐵離子不穩(wěn)定,只能用其它惰性成分包裹起來。但是那種惰性成分疏水性很強(qiáng),包裹之后無法分散到水里,我們就幫他們尋找一種方案降低那種惰性成分的疏水性。
后來的解決途徑就是加入乳化劑,因為乳化劑是兩性分子,疏水的一頭會吸附到疏水成分的表面,而親水的一頭伸到水中,這樣那些顆粒的表面就變得親水了。乳化劑是使用非常廣泛的食品添加劑,它的基本作用是讓本來無法混溶的油和水能夠均勻混合。我后來的工作中就經(jīng)常和乳化劑打交道,一個同事是做咖啡伴侶的,就是國內(nèi)所說的“奶精”??Х劝閭H的設(shè)計本身不是為了提供營養(yǎng),而是方便廉價地實現(xiàn)咖啡增白和保溫。所以咖啡伴侶的設(shè)計目標(biāo)就是使用盡可能少的蛋白質(zhì)去高效地乳化更多的油。因為蛋白質(zhì)的乳化效率不高,形成的脂肪顆粒比較大,不利于白色的產(chǎn)生,而小分子乳化劑產(chǎn)生的脂肪顆粒又不夠穩(wěn)定,所以二者總是配合使用。美國有許多種批準(zhǔn)使用的小分子乳化劑,我曾經(jīng)幫那個同事篩選過乳化劑。我把推薦意見給他的時候,他說我們還得考慮到每種乳化劑的成本和法律規(guī)定可以使用的*,這又使得產(chǎn)品的開發(fā)多了一些限制。
美國Alfa
我司還提供其它進(jìn)口或國產(chǎn)試劑盒:登革熱、瘧疾、流感、A鏈球菌、合胞病毒、腮病毒、乙腦、寨卡、黃熱病、基孔肯雅熱、克錐蟲病、違禁品濫用、肺炎球菌、軍團(tuán)菌、食品安全、化妝品檢測、藥物濫用檢測等試劑盒以及日本生研細(xì)菌分型診斷血清、德國SiFin診斷血清、丹麥SSI診斷血清等產(chǎn)品。
想了解更多的產(chǎn)品及服務(wù)請掃描下方二維碼:
【公司名稱】 廣州健侖生物科技有限公司
【市場部】 楊永漢
【】
【騰訊 】
【公司地址】 廣州清華科技園創(chuàng)新基地番禺石樓鎮(zhèn)創(chuàng)啟路63號二期2幢101-103室
The FDA was a data-only organization from the outset, so neither the president nor the experts were able to conclude the debate until a few years later, based on the findings of the study, considered the saccharin harmless. However, by 1960, one study reported that consumption of saccharin in large quantities led to bladder cancer in mice. Subsequent studies also showed that saccharin is a possible carcinogen. Based on this, Canada banned the use of saccharin in 1977 and the FDA is also ready to follow up. However, saccharin was a synthetic sugar substitute for clenbuterol, which was strongly opposed by the public, especially diabetics. Under pressure from the public, Congress did not approve the proposal, requiring only that "saccharin be a carcinogen" on saccharin-containing foods. Since then, there has been a great deal of research on the safety of saccharin, but no reliable evidence has been found about human cancers. So in 1991, FDA withdrew the same year's application. By 2001, Clinton had signed a decree announcing the label that saccharin might have caused cancer. Since then, saccharin has achieved full legal status in the United States.
Unmotivated: Food additive I encountered in the United States
Although criticism has been constant, but the United States on the market using sugar substitutes a lot of food. After all, sugar substitutes solve the pain of diabetics. For the average person, there are real benefits of less caloric intake, and those legendary "harms" are somewhat "unwarranted." Next to the coffee machine in our company, sugar substitutes and regular sugar are provided, and most people, as I observed, still use sugar substitutes.
Emulsifier and thickener story
Because of the reasons mentioned above, many people want to drink both good and cheap but also does not contain calories, so sugar-free drinks have a vast market demand. We did a project for a beverage company that had only a few calories per cup of drink (typically over 100 calories). They want to supplement that element with iron, but the iron is not stable and can only be wrapped with other inert ingredients. But the inert ingredients are very hydrophobic and can not be dispersed into the water after the package, and we help them find a way to reduce the hydrophobicity of that inert ingredient.
Later, the solution was to add the emulsifier, because the emulsifier is an amphipathic molecule, the hydrophobic head will adsorb to the surface of the hydrophobic component, and the hydrophilic head into the water, so that those particles become hydrophilic surface. Emulsifiers are a very widely used food additive whose basic function is to allow an inherently immiscible oil and water to be homogeneously mixed. My later work often deal with emulsifiers, a colleague is a coffee partner, is the so-called "creamer." Coffee mate design itself is not to provide nutrition, but convenient and cheap to achieve coffee whitening and insulation. So the coffee mate's design goal is to use as little protein as possible to emulsify more oil efficiently. Because the protein emulsification efficiency is not high, the formation of fat particles is relatively large, is not conducive to the production of white, and fat molecules produced by small molecule emulsifier is not stable enough, so the two are always used in conjunction. There are many types of small molecule emulsifiers approved for use in the United States, and I used to help those colleagues screen emulsifiers. When I gave him the recommendation, he said we had to take into account the cost of each emulsifier and the limits that legal provisions could use, which in turn put some limitations on product development.