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1)  VA content
VA含量
2)  Vitamin A
VA
1.
This is a method for determination of Vitamin A in goose fat liver and goose liver catsup by HPLC.
研究了运用高效液相法检测鹅肥肝和鹅肝酱中VA的方法。
2.
In this research, microcapsules were spray-dried, gelatin+sucrose, gelatin+peach gum +sucrose, and peach gum +sucrose were used as wall material and vitamin A was used as the model core respectively.
用明胶+蔗糖、明胶+桃胶+蔗糖、桃胶+蔗糖作为壁材,VA作模型心材,用喷雾干燥法制备微胶囊;研究了微胶囊表观结构、粒径分布、红外光谱、玻璃化转变温度(Tg)和常温贮藏的保留率。
3.
Vitamin A levels in the diets of four treatments were 6 375,8 500,10 625 and 12 750 IU/kg respectively,while vitamin E levels were 37.
本文旨在研究日粮中添加不同水平维生素A(VA)、维生素E(VE)对肉鸡抗氧化和免疫性能的影响。
3)  VA 90
VA-90
4)  concentration [英][,kɔnsn'treɪʃn]  [美]['kɑnsṇ'treʃən]
含量
1.
Detection the Concentration in Apple Juice by Ultraviolet-visible Spectroscopy and Multiple Linear Regression Methods;
多元校正紫外光谱法测定苹果汁含量研究
2.
Concentrations and XAFS speciation in situ of mercury in hair from populations in Wanshan mercury mine area, Guizhon Province;
贵州万山汞矿地区人发中汞的含量及其赋存状态的XAFS原位研究
3.
The concentration and chemical speciation of Pb in Nanjing urban soils;
南京城市土壤Pb的含量及其化学形态
5)  determination [英][dɪ,tɜ:mɪ'neɪʃn]  [美][dɪ'tɝmə'neʃən]
含量
1.
Determination of Isoflavones in Herb of Red Clover;
红三叶中总异黄酮含量测定
2.
Determination of Shionone in Xuelizhike Syrupus by HPLC;
HPLC法测定雪梨止咳糖浆中紫菀酮的含量
3.
Simultaneous determination of naproxen sodium and pseudoephedrine hydrochloride sustained-release tablets by HPLC;
HPLC法同时测定萘普生钠伪麻黄碱缓释片中两组分的含量
6)  AN content
AN含量
1.
Effect of AN content on the compatibility of PVC/SAN blends;
AN含量对PVC/SAN共混物相容性的影响
补充资料:Folbex VA
分子式:C17H16BR2O3
分子量:428.14
CAS号:

密度:1.59
熔点:77℃
蒸气压:0.680E-5Pa(20℃);0.690Pa(100℃)
毒性LD50(mg/kg):大鼠经口5000
性状:无色或白色结晶。
溶解情况:溶于有机溶剂,在水中溶解度<0.5E-6(20℃)。
用途:为低毒杀螨剂。杀螨谱广、持效期长,对天敌、蜜蜂及作物较安全。适用于柑桔、苹果等作物。
制备或来源:可用4,4'-二溴二苯乙醇酸、异丙醇、氢氧化钠、盐酸为原料制得。
备注:在微酸和中性介质中稳定,不易燃。一般加工配制成乳油。触杀性较强,无内吸性,对成螨和卵均有一定的杀伤作用。蒸气压为1.13E-8兆帕(20℃)。
类别:杀虫剂


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