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BioAssay Systems/QuantiChrom™ Iron Assay Kit/250 tests/DIFE-250
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BioAssay Systems/QuantiChrom™ Iron Assay Kit/250 tests/DIFE-250
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bioassaysys
货号 / 
DIFE-250
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4000-520-616

QuantiChrom™ Iron Assay Kit

QuantiChrom™ Iron Assay Kit Catalog No: DIFE-250
Price: $349 Qty:
For orders of 10 or more kits, please call +1-510-782-9988x1 oremail us for best pricing and/or bulk order. Shipping: RT Shipment: Fedex ServiceDelivery: 1-2 days (US), 3-6 days (Intl) Storage: 4°C
Iron Assay Kit
  • Product Overview
  • Product FAQ
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  • Assay Service
ProtocolSDS

Application

  • For quantitative determination of iron ions Fe3+ and/or Fe2+ and evaluation of drug effects on iron metabolism.

Key Features

  • Sensitive and accurate. Linear detection range 27 μg/dL (4.8 μM) to 1,000 μg/dL (179 μM) iron in 96-well plate assay.
  • Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 40 min. Can be readily automated as a high-throughput assay for thousands of samples per day.
  • Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Cuvette or 96-well plate assay.
  • Low interference in biological samples. No pretreatments are needed. Assays can be directly performed on serum samples.

Method

  • OD590nm

Samples

  • Biological (e.g. serum) and environmental samples

Species

  • All

Size

  • 250 tests

Detection Limit

  • 27 μg/dL (4.8 μM)

Shelf Life

  • 12 months

More Details

  • Ironlevel in blood is a reliable diagnostic indicator of various disease states. Increased levels of iron concentration in blood are associated with blood loss, increased destruction of red blood cells (e.g. hemorrhage) or decreased blood cell survival, acute hepatitis, certain sideroachrestic anemias, ingestion of iron-rich diets, defects in iron storage (e.g. pernicious anemia). Decreased levels of blood iron may result from insufficient iron ingestion from diets, chronic blood loss pathologies, or increased demand on iron storage as during normal pregnancy. Simple, direct and automation-ready procedures for measuring iron concentrations find wide applications in research, drug discovery and environmental monitoring. BioAssay Systems iron assay kit is designed to measure total iron directly in serum without any pretreatment. The improved method utilizes a chromogen that forms a blue colored complex specifically with Fe2+. Fe3+ in the sample is reduced to Fe2+, thus allowing the assay for total iron concentration. The intensity of the color, measured at 590nm, is directly proportional to the iron concentration in the sample.

I would like to know how serum samples should be prepared for use in the assay.

Sera are usually obtained by centrifugation of clotted blood (fresh blood standing for about 30 min at room temperature). Both, fresh serum or frozen serum can be assayed directly (50 µL sample + 200 µL working reagent).

Do DTT or IGEPAL/NP-40 in cell lysis buffer will have any influence on the assay?

Our data show that up to 4% NP-40 has no effect on the DIFE-250 assay. Up to 20 mM β-mercaptoethanol also had no effect on the DIFE-250. We did not test DTT, but we believe DTT would not interfere with this assay either.

Can you use DIFE-250 to measure iron in whole blood?

No, whole blood needs to be diluted to a degree that the normal serum iron concentration is below the detection limit of the assay. The assay is not suitable for measuring hemoglobin bound iron.

Please let us know the preparation for the liver tissue.

Tissue samples should be dried overnight at 106°C and weighed. Samples can then be solubilized in 6N nitric acid by heating at 100°C to release protein-associated iron. The solution is neutralized with NaOH, diluted in deionized water as necessary, and assayed for iron concentration using the DIFE-250 kits.For more detailed product information and questions, please feel free to Contact Us. Or for more general information regarding our assays, please refer to our General Questions.
Dichtl, S., Demetz, E., Haschka, D., Tymoszuk, P., Petzer, V., Nairz, M. & Theurl, I. (2019). Dopamine Is a Siderophore-Like Iron Chelator That Promotes Salmonella enterica Serovar Typhimurium Virulence in Mice. mBio, 10(1), e02624-18. Assay: Iron in mice serum.Malhotra, H., Kumar, M., Chauhan, A. S., Dhiman, A., Chaudhary, S., Patidar, A. & Raje, M. (2019). Moonlighting Protein Glyceraldehyde-3-Phosphate Dehydrogenase: A Cellular Rapid-Response Molecule for Maintenance of Iron Homeostasis in Hypoxia. Cellular physiology and biochemistry: international journal of experimental cellular physiology, biochemistry, and pharmacology, 52(3), 517-531. Assay: Iron in mouse cells. Cheli, V. T., Gonzalez, D. A. S., Marziali, L. N., Zamora, N. N., Guitart, M. E., Spreuer, V. & Paez, P. M. (2018). The Divalent Metal Transporter 1 (DMT1) is required for iron uptake and normal development of oligodendrocyte progenitor cells. Journal of Neuroscience, 38(43), 9142-9159. Assay: Iron in mice cells. Efird, W. M., Fletcher, A. G., Draeger, R. W., Spang, J. T., Dahners, L. E., & Weinhold, P. S. (2018). Deferoxamine-Soaked Suture Improves Angiogenesis and Repair Potential After Acute Injury of the Chicken Achilles Tendon. Orthopaedic journal of sports medicine, 6(10), 2325967118802792. Assay: Iron in broiler chicks DFO. Samba Mondonga, M., Calve, A., Mallette, F. A., & Santos, M. M. (2018). MyD88 regulates the expression of SMAD4 and the iron regulatory hormone hepcidin in hepatoma cells. Frontiers in cell and developmental biology, 6, 105. Assay: Iron in human kidney cells. Worley, B. L., Kim, Y. S., Mardini, J., Zaman, R., Leon, K. E., Vallur, P. G. & Phaeton, R. (2018). GPx3 supports ovarian cancer progression by manipulating the extracellular redox environment. Redox Biology pii: S2213-2317(18)30891-7. Assay: Iron in human ovarian cells. Asshoff, M., Petzer, V., Warr, M. R., Haschka, D., Tymoszuk, P., Demetz, E. & Fowles, P. (2017). Momelotinib inhibits ACVR1/ALK2, decreases hepcidin production, and ameliorates anemia of chronic disease in rodents. Blood, 129(13), 1823-1830. Assay: Iron in rat/mice serum. Ma, X., Pham, V. T., Mori, H., MacDougald, O. A., Shah, Y. M., & Bodary, P. F. (2017). Iron elevation and adipose tissue remodeling in the epididymal depot of a mouse model of polygenic obesity. PloS one, 12(6), e0179889. Assay: Iron in mice serum. Marks, E. S., Bonnemaison, M. L., Brusnahan, S. K., Zhang, W., Fan, W., Garrison, J. C., & Boesen, E. I. (2017). Renal iron accumulation occurs in lupus nephritis and iron chelation delays the onset of albuminuria. Scientific reports, 7(1), 12821. Assay: Iron in mice plasma. Quan, Y. Y., Liu, Y. H., Lin, C. M., Wang, X. P., & Chen, T. S. (2017). Peroxynitrite dominates sodium nitroprusside-induced apoptosis in human hepatocellular carcinoma cells. Oncotarget 8(18): 29833-29845. Assay: Iron in cells. Shang, Y. M., Wang, G. S., Sliney, D. H., Yang, C. H., & Lee, L. L. (2017). Light-emitting-diode induced retinal damage and its wavelength dependency in vivo. International journal of ophthalmology 10(2): 191-202. Assay: Iron in Sprague Dewley rats retina protein. Sun, X., Zhao, Y., Jia, J., Xie, J., Cheng, J., Liu, H. & Fu, Y. (2017). Uninterrupted expression of CmSIT1 in a sclerotial parasite Coniothyrium minitans leads to reduced growth and enhanced antifungal ability. Frontiers in microbiology, 8, 2208. Assay: Iron in Coniothyrium minitans cells. Szemraj, M., Oszajca, K., Szemraj, J., & Jurowski, P. (2017). MicroRNA expression analysis in serum of patients with congenital hemochromatosis and age-related macular degeneration (AMD). Medical science monitor: international medical journal of experimental and clinical research 23: 4050-4060. Assay: Iron in human serum. Thongdee, P., & Na-Bangchang, K. (2017). The role of heme-oxygenase-1 in pathogenesis of cerebral malaria in the co-culture model of human brain microvascular endothelial cell and ITG Plasmodium falciparum-infected red blood cells. Asian Pacific journal of tropical medicine 10(1): 20-24. Assay: Iron in human brain cells. Zhang, C. W., Tai, Y. K., Chai, B. H., Chew, K. C., Ang, E. T., Tsang, F. & Lim, K. L. (2017). Transgenic mice overexpressing the divalent metal transporter 1 exhibit iron accumulation and enhanced parkin expression in the brain. Neuromolecular medicine, 19(2-3), 375-386. Assay: Iron in mouse feces. Hendricks, M. R., Lashua, L. P., Fischer, D. K., Flitter, B. A., Eichinger, K. M., Durbin, J. E. & Bomberger, J. M. (2016). Respiratory syncytial virus infection enhances Pseudomonas aeruginosa biofilm growth through dysregulation of nutritional immunity. Proceedings of the National Academy of Sciences, 113(6), 1642-1647. Assay: Iron in human cells. Karoopongse, E., Marcondes, A. M., Yeung, C., Holman, Z., Kowdley, K. V., Campbell, J. S., & Deeg, H. J. (2016). Disruption of iron regulation after radiation and donor cell infusion. Biology of Blood and Marrow Transplantation, 22(7), 1173-1181. Assay: Iron in mouse serum. Li, Y., Pan, K., Chen, L., Ning, J. L., Li, X., Yang, T. & Tao, G. (2016). Deferoxamine regulates neuroinflammation and iron homeostasis in a mouse model of postoperative cognitive dysfunction. Journal of neuroinflammation, 13(1), 268. Assay: Iron in mice cells. Noguchi-Sasaki, M., Sasaki, Y., Shimonaka, Y., Mori, K., & Fujimoto-Ouchi, K. (2016). Treatment with anti-IL-6 receptor antibody prevented increase in serum hepcidin levels and improved anemia in mice inoculated with IL-6-producing lung carcinoma cells. BMC Cancer 16: 270. Assay: Iron in mouse serum. Tamayo, E., Benabdellah, K., & Ferrol, N. (2016). Characterization of three new glutaredoxin genes in the arbuscular mycorrhizal fungus Rhizophagus irregularis: putative role of RiGRX4 and RiGRX5 in iron homeostasis. PloS one, 11(2), e0149606. Assay: Iron in yeast cells. Theurl, I., Hilgendorf, I., Nairz, M., Tymoszuk, P., Haschka, D., Asshoff, M. & Sopper, S. (2016). On-demand erythrocyte disposal and iron recycling requires transient macrophages in the liver. Nature medicine, 22(8), 945. Assay: Iron in human plasma. Anderson ER, et al (2011). Intestinal hypoxia-inducible factor-2alpha (HIF-2alpha) is critical for efficient erythropoiesis. J Biol Chem. 286(22):19533-40. Assay: Iron in mice serum. Hamlin F, Latunde-Dada GO (2011). Iron bioavailibity from a tropical leafy vegetable in anaemic mice. Nutr Metab (Lond). 8:9. Assay: Iron in mice serum. Waheed MM, et al (2011). Some Biochemical Characteristics and Preservation of Epididymal Camel Spermatozoa (Camelus dromedarius). Theriogenology 76(6):1126-33. Assay: Iron in camel epididymal fluid. Ringseis R, et al (2010). Low availability of carnitine precursors as a possible reason for the diminished plasma carnitine concentrations in pregnant women. BMC Pregnancy Childbirth.10:17. Assay: Iron in human plasma. Zhang Y, et al (2010). Diphthamide biosynthesis requires an organic radical generated by an iron-sulphur enzyme. Nature 465(7300):891-6. Assay: Iron in bacterial cell . Zhu W, et al (2010). Genetic iron chelation protects against proteasome inhibition-induced dopamine neuron degeneration. Neurobiol Dis. 37(2):307-13. Assay: Iron in human neuron cell. Chen H, et al (2009). Changes in iron-regulatory proteins in the aged rodent neural retina. Neurobiol Aging. 30(11):1865-76. Assay: Iron in rat serum. Chen H, et al (2009). Dysfunction of the retinal pigment epithelium with age: increased iron decreases phagocytosis and lysosomal activity. Invest Ophthalmol Vis Sci. 50(4):1895-902. Assay: Iron in rat serum. Shah, YM et al (2009). Intestinal hypoxia-inducible transcription factors are essential for iron absorption following iron deficiency. Cell Metab. 9(2):152-64. Assay: Iron in mouse erythrocytes. Sudarshan S, et al (2009). Fumarate hydratase deficiency in renal cancer induces glycolytic addiction and hypoxia-inducible transcription factor 1alpha stabilization by glucose-dependent generation of reactive oxygen species. Mol Cell Biol. 29(15):4080-90. Assay: Iron in human tumor cell. Yokosho K, et al (2009). OsFRDL1 is a citrate transporter required for efficient translocation of iron in rice. Plant Physiol. 149(1):297-305. Assay: Iron in plant rice. Bandyopadhyay S, et al (2008). A proposed role for the Azotobacter vinelandii NfuA protein as an intermediate iron-sulfur cluster carrier. J Biol Chem. 283(20):14092-9. Assay: Iron in bacterial cell protein. Raulfs EC, et al (2008). In vivo iron-sulfur cluster formation. Proc Natl Acad Sci U S A. 105(25):8591-6. Assay: Iron in bacterial cell protein. Habel ME, Jung D. (2006) c-Myc over-expression in Ramos Burkitt"s lymphoma cell line predisposes to iron homeostasis disruption in vitro. Biochem Biophys Res Commun. 341(4):1309-16. Assay: Iron in human lymphoma cell.To find more recent publications, pleaseclick here.
If you or your labs do not have the equipment or scientists necessary to run this assay, BioAssay Systems can perform the service for you.Simply send us your samples:- Fast turnaround - Quality data - Low costPlease email or call 1-510-782-9988 x 2 to request assay service.
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大鼠的脑灌注后,要做免疫组化,做石蜡包埋可以吗?石蜡包埋和冰冻切片哪一种更好一些?脑用TUNNEL法测凋亡率,用石蜡包埋可以吗?
石蜡能否回收再利用 123
Becklittle2015-04-17
我用的来卡的,每次包埋都会浪费掉很多蜡,流到底下的托盘,这些蜡能回收再用吗?大家一般都是怎么处理的?
切片技术最早期是从冰冻切片开始,后来逐步有了发展和更新,冰冻切片弥补了石蜡切片和火棉胶切片之不足,石蜡切片和火棉胶切片需时太久,且在制片中要使用许多化学试剂,石蜡切片还需要加温过程,因而某些重要的不稳定的组织成分如脂类、酶以及抗体等,可能被溶解和破坏。冰冻切片过程较简单,无须经过上述步骤,组织中的水分起着包埋剂的作用,组织经固定或不固定即可进行冰冻切片,切片厚度一般可在6-8微米,组织没有收缩,易保持生活时原有状态,是保存脂肪组织,许多神经组织特殊染色方法和组织化学方法,特别是酶的活性十分理想的切片方法,对于外科临床诊断和现代免疫荧光诊断,冰冻切片也很重要。其缺点是组织过大不易冰冻,连续切片困难。5微米以下切片不易成功。但是随着现在冰冻包埋液的不断改进,已经能切出少于3微米的切片
一、直接冰冻切片法
冰冻切片多用于新鲜组织、甲醛固定组织和冰箱冷藏组织等。组织块不经任何包埋剂而直接放在制冷台上冷却后再进行切片。
1.恒冷箱切片就是将组织在恒冷箱的切片机切片。目前恒冷箱切片机的品种较多。此种切片适用于科研和教学上的连续切片。要求预先开动电源(预冷准备),配多种固定组织台,以便更换组织。
2.甲醇制冷器制冷箱为附有带导管的制冷台和制冷刀的甲醇循环装制,其冷却速度比较快,属于开放式,作一般常规冰冻切片用。
3.二氧化碳冰冻法将组织用蒸馏水洗后,放在冰冻切片机的冷冻台上,加蒸馏水少许。打开冷冻台的二氧化碳开关,二氧化碳气体喷出,待组织出现冷霜时,将二氧化碳关闭,即可切片。若组织冷冻过硬则切片易碎;组织冷冻硬度不足,则切片呈粥糜状,需用间歇方法继续冷却。硬度一般在刚开始解冻时最合适,应迅速切片。
4.半导体致冷冰冻切片法将组织置半导体致冷台上,滴加少许蒸馏水,调好切片机的厚度。先接通热器的循环流水,然后接通电源,电源的正负极切勿接反,用整流电源控制温度。
二、明胶冰冻切片法明胶包埋法一般多用于冰冻切片易破碎的组织,特别是某些有树枝状突起的组织,当其切片后投入水中时,常常引起分散,甚至发生丢失,某些间隙较多的组织,有时会因发生散乱而失去相互间的联系,可形成移位现象。明胶冰冻切片正是适用于上述情况。
环保组织固定液定后必须充分水洗,洗净。因甲醛对明胶有凝固作用,从而影响明胶溶液浸入组织内部,不宜选用含甲醛类固定液。
⑵组织水洗后浸入12.5%明胶水溶液(以1%石碳酸水溶液配制),于37℃温箱浸6-24h。
⑶移至25%明胶溶液内浸6-24h。
⑷25%明胶包埋,连同包埋器放入冰箱内使明胶迅速凝固,取出后在空气中蒸发10min。
⑸入环保组织固定液固定明胶块1-2日。
⑹蒸馏水洗后,置冰冻切片机或滑动式切片机切片。切片可保存于10%甲醛液中。
⑺依检查目的而进行染色,染色后一般不经乙醇脱水及二甲苯透明,而用下述明胶溶液或其他类似的明胶溶液封片:果糖26g,明胶1.1g,钾矾0.75g,麝香草酚水溶液1.15ml。
先将果糖溶于麝香草酚饱和液,置于56℃温箱内12h,加明胶后在水浴内加温熔化,
湖北慧达仪器有限公司的:HD-310B的质量最好!容量大,还是触摸屏的,国产的只有慧达公司的包埋机有触摸的,用着很方便,也够档次!

如题。实验室只有冰冻切片机,但标本已制成石蜡包埋的标本,问能否用冰冻切片机来切?还是一定得用石蜡切片机切片?

【求助】请教包埋机切片机染色机哪些品牌型号比较好?另.有哪些医疗器械的论坛比较好?谢谢
国产组织包埋机大概多少钱一台?带冷台
这个是科长该干的活,大体上么就是老式脱水机不是封闭式,有害气体容易挥发,取材量大容易脱水不佳,进而影响切片和诊断,一堆理由了
刚接触实验室,但是会用的人都走了,只有求助大家了,谁有切片机DQP-9010和JB-P5生物组织包埋机的说明书啊,上传一份,谢谢啦
要不漏蜡的,大容量6900毫升的
我们科室主要做免疫组化的,可是最近我们用的切片石腊老是有问题,切的时候蜡有裂缝,经常断开,褶皱比较多,展片时蜡融的很快,还未等切片展开,蜡就融掉了.
所以在考虑换一种蜡试试,因为几乎每天都要做石蜡切片,所以比较急,可是已经很长时间了也没找到合适的.
做组化的同学及老师们有没有自己用过,而且觉得好用的蜡推荐一下啊?
不甚感激啊!
包埋机怎么用,注意事项123
maria30145927872021-07-22

一.包埋机
包埋机,又称生物组织包埋机或者石蜡包埋机,是对人体或动植物标本经脱水浸蜡后进行组织蜡块包埋,以供切片后作组织学诊断或研究的设备,适用于医学院校、医院病理科、医学科研单位、动植物科研单位和食品检测等部门使用。
二.包埋机作用及原理
由于生物样品各种组织成分不同,因此性质也各异,如软硬程度,疏松、致密程度,面积大小等都不相同,自然状态下要将它们切成十几微米甚至几个微米的薄片,几乎是办不到的。包埋的原理就是将某些特殊的支持物质浸入到组织块内部,利用支持物质的物理特性,如由液态转变成固态,使整个组织具有均匀一致的固态结构和足够的硬度,以利于用切片机制取极薄的切片。组织学切片技术中最常用的一种包埋方法是利用石蜡作为包埋剂,将浸过蜡的组织块置于石蜡内制成蜡块。
由于组织是柔软的,或局部的软硬不均,使用常规技术制作切片或超薄切片时制作厚薄均匀的切片是困难的,所以有必要用一定物质浸透组织内部,整个组织一样硬化,先将熔化的石蜡注入包埋托内(模具),而后用镊子将经过浸蜡的组织块从脱水盒中取出,放入包埋托中央,放在小冷台上,用镊子轻按组织块,以达到组织块平整,盖上脱水盒底,再加好石蜡,移至冷冻台上,待冷冻好后,卸下组织蜡块待切。?
包埋机不仅用于观察正常细胞组织的形态结构,在病理学和法医学等学科用以研究、观察及判断细胞组织的形态变化的主要方法,而且也已相当广泛地用于其他许多学科领域的研究中;教学中,为达到光镜下观察切片标本。包埋解决方案帮助您确保正确的组织定位、避免出现热损坏并创造出理想的组织块形状

三.包埋机清洁注意事项
每次清洁仪器之前,要注意关闭仪器,并拔下电源插头。
处理清洁材料时,请遵守制造商的安全规定以及所在国家的现行实验室规定。
清洁期间,不得有任何液体渗入仪器内部。
为防止刮伤仪器表面,在任何情况下均不得使用带有锋利边缘的金属工具。
工作表面的清洁:
适合去除石蜡的所有实验室常用清洁产品(例如,Paraguard或二甲苯替代品)均可用于清洁工作区。
仪器和外部表面的清洁:
必要时,请用温和的家用清洁剂或肥皂水清洁喷漆的外表面,并用湿布擦拭。
避免有机溶剂长时间接触仪器表面。不得在喷漆表面使用二甲苯或丙酮。
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