美国Alfa 瘦肉精快速检测(尿样)试纸
广州健仑生物科技有限公司
我司长期供应瘦肉精三联检测卡,本产品用于快速检测动物尿样、组织和饲料中盐酸克伦特罗、莱克多巴胺、沙丁胺醇残留,整个检测过程只需要3-5分钟左右,具有操作简单,方便快捷,灵敏度高特异性强等特点。
瘦肉精检测试剂进口品牌:美国Alfa、美国US
我司还提供其它进口或国产试剂盒:登革热、疟疾、流感、A链球菌、合胞病毒、腮病毒、乙脑、寨卡、黄热病、基孔肯雅热、克锥虫病、违禁品滥用、肺炎球菌、军团菌、化妆品检测、食品安全检测等试剂盒以及日本生研细菌分型诊断血清、德国SiFin诊断血清、丹麦SSI诊断血清等产品。
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【瘦肉精的危害】
“瘦肉精”进入动物体内后主要分布于肝脏。肌肉中含量较肝脏低很多。人摄入后在体内存留时间较长,其不良反应主要有:可引起心率加速,特别是原有心律失常的病例更易发生心脏反应,可见心室早搏、ST段与T波幅压低,还会发出肌肉震颤,引发四肢、面颈部骨骼肌震颤,尤其是交感神经功能亢进的病例更易发生。此外,还可引起代谢紊乱、血钾降低,引起心慌、肌肉震颤、头痛以及脸部潮红等。对心率失常、高血压、青光眼、糖尿病、甲状腺机能亢进等疾病的患者有较大危害。
美国Alfa 瘦肉精快速检测(尿样)试纸
【产品简介】
本产品为克伦特罗-莱克多巴胺-沙丁胺醇三合一胶体金快速检测卡,用于定性检测猪、牛、羊尿液、组织和饲料中的瘦肉精残留,整个检测过程只需要3-5分钟左右。
【检测限】
克伦特罗3ng/ml(3ppb),莱克多巴胺3ng/ml(3ppb),沙丁胺醇3ng/ml(3ppb)
【产品组成】
克伦特罗-莱克多巴胺-沙丁胺醇三合一胶体金快速检测卡(40T/盒)
滴管(1个/袋)、干燥剂(1片/袋)
【样品处理】
用干燥、洁净的离心管或适当容器采集50ml左右尿液。如果不立即检测,待检样本在2-8℃存放,可保存24小时,注意避免腐坏造成失效或污染。出现阳性结果应按法定程序分瓶封装样品用于确证法检测。
【使用步骤】
1、测试前先完整阅读说明书,使用前将检测卡和待检样本溶液恢复至室温4~30℃。
2、从原包装袋中取出检测卡,打开后请在一个小时内尽快地使用。
3、将检测卡平放,用滴管吸取待检样品溶液,缓慢垂直滴加2-3滴于加样孔中,加样后开始计时。
4、结果应在3-5分钟时读取,其他时间判读无效,根据示意图判定结果。
【结果判断】
- 阴性(-):两条紫红色条带出现。表示样品中不含有瘦肉精或其浓度低于检测限。
- 阳性(+):检测T线无显色,则表示样品中瘦肉精浓度高于检测限。
- 无效:未出现质控C线,表明操作过程不正确或检测卡已失效。
【注意事项】
1、检测卡请在保质期内一次性使用;
2、检测时避免阳光直射和电风扇直吹;
3、尽量不要触摸检测卡中央的白色膜面;
4、采样滴管不可混用,以免交叉污染;
5、如果待检样本出现沉淀或浑浊物,请离心后再检测;
6、试验遇到的任何问题,请与供应商。
【储存及有效期】
原包装应储存于4~40℃,阴凉避光干燥处,切勿冷冻;有效期24个月。有效期及批号见外包装。
美国Alfa
基于此科学家们认为用动物实验的结果来推测其在人体中的表现还是合理的。这六位志愿者还接受了不同的用量,来考察对身体状况的影响。在每公斤体重的用量不超过67微克的情况下,没有观察到对人体有不良影响。把这个量除以一个50左右的“安全系数”,FDA认为每天可接受的摄入量是每公斤体重1.25微克。据此,他们规定牛肉和猪肉中允许的Ractopamine残留量分别是30和50 ppb(ppb是十亿分之一)。在这个残留量下,一个50公斤的人每天吃上两斤半猪肉或者四斤牛肉都还是很安全的。加拿大和WHO的标准稍高一些,猪肉中的允许残留是40ppb,而瘦肉精粮农组织则是10ppb。日本和新西兰比较有趣,本国的生产不许使用,但是进口猪肉允许10ppb的残留。总的来说,还是只有少数国家允许使用,包括中国在内的绝大多数国家是禁用的。
Ractopamine或者别的动物生长添加剂,禁用与否应该是一个技术问题。对于毒性研究的设计是否合理,推理是否严密,安全系数是否足够大,以及决策是否有足够的科学支持,人们*可以提出质疑。但是,如果连物质名称都不清楚,仅仅是因为祖先没有用过就拒绝接受,或者认为改变了动物“天然”的生长方式就反对,跟一百多年前的人们对于汽车的恐慌并无区别。如果主管部门只是为了迎合民意而禁止,那么实在是一个社会的悲哀。
三聚氰胺的*引起了社会对食品添加剂的关注,不过,其实三聚氰胺根本就不是食品添加剂。公众对于食品添加剂的恐慌,更多是出于一种对陌生事物的怀疑。
不知不觉,我在美国从事食品领域的研究工作已经五年了,其间接触过各种重要的食品添加剂类型。虽然我的专业里有“食品”二字,不过真正开始做具体的食品研发是差不多快毕业的时候。
为什么要用添加剂——布丁的故事
当时,实验室的一个博后要走了,老板就要我接过她手头的项目,开发基于大豆蛋白的布丁产品。布丁是一种形态介于糨糊和果冻之间的甜品,传统上是用牛奶蛋白做的。
但是一来牛奶蛋白越来越贵,二来牛奶产品中附带比较多的胆固醇,而大豆蛋白价格便宜,没有胆固醇问题,不管在经济还是营养方面都有一定的优势,所以州政府积极推动大豆产品的研发。
不过大豆蛋白代替牛奶蛋白后,生产出来的布丁在味道、口感、稳定上都不如以前,所以就要使用适当的食品添加剂来改善这些不满意的方面。我接手的时候实验室研究部分已经做完了,主要是加强了乳化剂的使用,并且用玉米糖浆来改善口味和增加粘度。我的工作是要在车间里进行连续生产。碰到的*个问题就是加热——因为规模大了之后受热不均匀,等到zui里面的加热透了外面的已经糊了,而不*熟透又达不到法律对于灭菌的要求。在一次进展汇报的时候,一个教授问:“为什么不用糖替代品来提高对温度的稳定性呢?”就改善口味而言,用糖替代品是可以的,但是在布丁里糖浆还有增稠的作用,所以就行不通了。
美国Alfa
我司还提供其它进口或国产试剂盒:登革热、疟疾、流感、A链球菌、合胞病毒、腮病毒、乙脑、寨卡、黄热病、基孔肯雅热、克锥虫病、违禁品滥用、肺炎球菌、军团菌、食品安全、化妆品检测、药物滥用检测等试剂盒以及日本生研细菌分型诊断血清、德国SiFin诊断血清、丹麦SSI诊断血清等产品。
想了解更多的产品及服务请扫描下方二维码:
【公司名称】 广州健仑生物科技有限公司
【市场部】 杨永汉
【】
【腾讯 】 2042552662
【公司地址】 广州清华科技园创新基地番禺石楼镇创启路63号二期2幢101-103室
Based on the scientists believe that the results of animal experiments to speculate that its performance in the human body is still reasonable. The six volunteers also accepted different doses to examine the impact on their health. No adverse effect on the human body was observed at a dose of no more than 67 micrograms per kilogram of body weight. By dividing this amount by a "safety factor" of about 50, the FDA considers the acceptable daily intake to be 1.25 micrograms per kilogram of body weight. Accordingly, they stipulate that the allowable Ractopamine residues in beef and pork are 30 and 50 ppb respectively (ppb is one billionth). At this residual amount, it is still safe for a 50 kilogram person to eat two pounds of half pork or four pounds of beef a day. The Canadian and WHO standards are slightly higher, with 40 ppb in pork and 10 ppb in lean meat. Japan and New Zealand are more interesting, domestic production is not allowed, but imports of pork allow 10ppb of residue. In general, only a few countries are allowed to use the vast majority of countries, including China are banned.
Ractopamine or other animal growth additives, disabled or not should be a technical issue. It is entirely up to question whether the toxicity study is properly designed, reasoned closely, if the safety factor is large enough and if there is enough scientific support for decision making. However, even if the substance name is not clear, it is rejected only because the ancestor has not used it, or it is opposed to changing the animal's "natural" mode of growth, as opposed to the fear of the car more than a hundred years ago . If the competent authorities are only banned to cater to public opinion, then it is indeed a social tragedy.
The well-known melamine has aroused the community's concern about food additives, but in fact, melamine is simply not a food additive. Public panic about food additives, more out of a suspicion of strange things.
Unconsciously, I have been engaged in the field of food research in the United States for five years, during which a variety of important food additives have been exposed. Although there is a word for "food" in my specialty, it is almost time to really begin to do specific food research and development.
Why use additives - pudding story
At that time, after a booming laboratory, my boss asked me to take over the project she was working on to develop pudding products based on soy protein. Pudding is a dessert that is in the form of paste and jelly, traditionally made with milk protein.
However, milk protein is more and more expensive, and secondly, milk products contain more cholesterol, while soy protein is cheap and free from cholesterol. No matter in economy or nutrition, the state government actively promotes soybean products R & D.
However, soy protein instead of milk protein, the production of pudding in the taste, taste, stability are not as good as before, it is necessary to use appropriate food additives to improve these dissatisfied aspects. When I took over the laboratory research part has been done, mainly to strengthen the use of emulsifiers, and corn syrup to improve the taste and increase viscosity. My job is to make continuous production in the workshop. The first problem we encountered was heating - because of the uneven heating after the big scale, until the inside of the innermost heating had gone out of the way and was not compley cooked and could not meet the legal requirements for sterilization. In a progress report, a professor asks: "Why do not sugar substitutes to increase temperature stability?" To improve the taste, the use of sugar substitutes is okay, but the thickening of the syrup in the pudding The role, so it will not work.