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简单介绍:
一氧化氮与氧气检测系统常见问题
详情介绍:
Frequently Asked Questions       
Q1 What is the inNO-T System?什么是inNO-T system?
Q2 What is the function of the ‘inNO-T’ software?“inNO-T”软件的功能有哪些?
Q3 How would one describe the amiNO series of nitric oxide sensors?如何描述amiNO系列一氧化氮传感器?
Q4 What do these sensors measure?这些传感器测量什么?
Q5 How long did it take to develop these NO sensors?开发这些NO传感器用了多久?
Q6 What is the basic operation principle of these sensors?这些传感器的基本工作原理是什么?
Q7 What is unique about the amiNO series of nitric oxide sensors versus other NO sensors on the market today?与现在市场上其他NO传感器相比,amiNO系列的独特之处是什么?
Q8 How many types of nitric oxide sensors are currently available from Innovative Instruments?Innovative Instruments现在可以提供多少种NO传感器?
Q9 What are the differences between the sensors listed above?列出的传感器之间有什么区别?
Q10 What are the criteria used for selecting a specific sensor?选择特定传感器的标准时什么?
Q11 Why is the amiNO series selective for nitric oxide over other species in a complex sample mixture?在复杂混合物样品中,为何amiNO系列可以选择性测量出NO?
Q12 What is the response time of the amiNO sensors?amiNO传感器的响应时间是多少?

Q13 Why are there only a small number of publications that cite the use of the existing commercially available NO electrochemical sensors for cultured cells, live organs and animals, and tissue measurements?为何在培养细胞,活器官和动物,以及组织里的测量中,引用使用市场上可以买到的NO电子传感器发表的文章很少?

 

Q14 How are the amiNO sensors calibrated?amiNO传感器如何校准?
Q15 Can these sensors be used to measure nitrite and nitrate?这些传感器可否用于测量亚硝酸盐和硝酸盐?
Q16 What is the life time of these amiNO sensors?这些amiNO的工作寿命是多少?
Q17 What instrument(s) can be used with the amiNO sensors?amiNO传感器可以与哪些仪器一起使用?
1. What is the ‘inNO-T’ System? 什么是inNO-T system?
'inNO-T' 代表着 Innovative Nitric Oxide Measuring and Recording System. 简言之,他是 "蕞先进技术水平" 的计算机控制一氧化氮测量和数据采集系统,二合一的紧凑电池供电设备。他是目前市场上技术蕞先进的一氧化氮仪表,具有模拟信号到数字信号分辨率24 bit (16,0000,000 to 1) ,电流分辨率为 0.1 pA. ‘inNO-T’ 系统附带 Meter Analysis Software软件, 2个 ‘amiNO’ 传感器, 电磁搅拌器, 以及校准包. 软件与以下系统兼容 Windows™ 95, 98, 2000 以及 NT.
2. What is the function of the ‘inNO-T’ software?“inNO-T”软件的功能有哪些?
The ‘inNO-T’ software controls the parameters for NO measurements, display (charting), analysis and data saving and retrieval. Features include the ability to zero the background, control the recording speed, and change the scale and all the basic functions of a standard data acquisition system. On line calculations such as Minimum, Maximum, Delta, Average, Sample and Integral are also available. Data can be saved to a data file as an image and/or in text format. Data can also be fully or partially copied directly into an application such as Microsoft Excel™.
常见问题
3. How would one describe the amiNO series of nitric oxide sensors?如何描述amiNO系列一氧化氮传感器?
The ‘amiNO’ series of nitric oxide (NO) sensors are currently the only electrochemical sensors on the market today that are specifically designed for real time, in-situ measurements of NO in any sample or experimental setup. This would include measurements in-vivo and in cell cultures. All sensors are integrated sensors meaning that there are no reference or counter electrodes needed. All sensors are shielded from environmental and instrumental noise.
4. What do these sensors measure?这些传感器测量什么?
These sensors measure free NO regardless of its source or environment.
5. How long did it take to develop these NO sensors?开发这些NO传感器用了多久?
The amiNO series of NO sensors came as a result of 10 years of research and development. It started in 1991 by the porphyrinic sensor (Malinski & Taha, Nature, 358, 676, 1992). The developer of amiNO sensors has developed other NO sensors still offered by other companies. The amiNO sensors are the latest generation of NO sensors.
6. What is the basic operation principle of these sensors?这些传感器的基本工作原理是什么?
The sensing element of the sensor is covered with a series of gas permeable membranes allowing only certain types of gas to pass through. NO diffuses through these membranes and reacts at the electrode surface. The exchange of electrons between NO and the electrode surface results in an electrical current that is monitored and recorded. The magnitude of the electrical current is directly proportional to the amount of NO diffused through the membranes, which is proportional to the concentration of NO in the sample.
常见问题
7. What is unique about the amiNO series of nitric oxide sensors versus other NO sensors on the market today?与现在市场上其他NO传感器相比,amiNO系列的独特之处是什么?
Competitive NO sensors on the market today represent an earlier technology in NO sensor development. The amiNO series of NO sensors represents the latest improvements in NO sensor technology increasing sensitivity (signal/unit concentration) by over 100 times compared to currently available sensors. They also have lowered detection limits to below 1 nM. Combined with the superior electronics the ‘inNO-T’ meter, this allows the system to detect minute changes in NO concentrations. In other words, these sensors are able to differentiate between 10 and 11 nM, as an example. The following is a list of some of the other unique features these sensors offer:

 

     

  1. The amiNO-IV is the first commercially available sensor that is suitable for in-vivo measurements. It withstands insertion into tough tissues without the danger of breaking the gas permeable membrane.

     

     

     

  2. The amiNO-FLAT is the first commercially available sensor designed to monitor the release of NO from a monolayer-cultured cells and large flat tissue.

     

     

     

  3. Most of the sensors offer exceptional sensitivity (signal per unit concentration), enabling the users to monitor minute changes of NO concentrations. Some sensors offer a sensitivity in excess of 600 pA/nM, which is 100 times more sensitivity than any other known commercial sensor. Customized sensors can be fabricated with higher sensitivity limits.

     

 

This exceptionally high sensitivity minimizes any significant effects from baseline drift due to temperature variations. This "drift" is the primary drawback of most other commercially available sensors on the market today.
常见问题

8. How many types of nitric oxide sensors are currently available from Innovative Instruments?Innovative Instruments现在可以提供多少种NO传感器?
The table below shows a fist of eight amiNO sensors that will meet almost any NO measurement application. Five sensors are readily available. Three are available by special order. Customized sensors are also available upon request.
Amino Sensor
Description
amiNO-100
100 µm tip diameter sensor
amiNO-600
600 µm tip diameter sensor
amiNO-IV
600 µm tip diameter with a sharp mettalic tip
amiNO-FLAT
Flat design with a large surface area
amiNO-2000
2 mm stainless steel tip diameter sensor
amiNO-30
30 µm tip diameter sensor
amiNO-7
7 µm tip diameter sensor
amiNO-GAS
Gas phase sensor
常见问题

9. What are the differences between the sensors listed above?列出的传感器之间有什么区别?
The differences include size, flexibility of the body, durability, sensitivity and response time. They are specifically designed to meet the requirements for specific applications.
10. What are the criteria used for selecting a specific sensor?选择特定传感器的标准是什么?
The selection of the proper NO sensor strictly depends upon the application, the expected level of NO, and budgetary requirements. The following sensitivity comparison and selection guides can be useful in choosing the right sensor for you.
 

11. Why is the amiNO series selective for nitric oxide over other species in a complex sample mixture?在复杂混合物样品中,为何amiNO系列可以选择性测量出NO?
The selectivity is assured by the intrinsic structural and instrumental design of the sensors. The use of our proprietary TRIPLECOAT gas permeable membrane design 'filters' out all other species and most gases. Instrumental parameters are set to measure only NO even in the presence of oxygen, carbon dioxide, nitrogen, carbon monoxide, and other gases.
常见问题
12. What is the response time of the amiNO sensors?amiNO传感器的响应时间是多少?

 

The response time is defined as the time needed to reach 90% of the response. The response time of the ‘amiNO’ sensors varies from one design to another from under one second to several seconds.

13. Why are there only a small number of publications that cite the use of the existing commercially available NO electrochemical sensors for cultured cells, live organs and animals, and tissue measurements?为何在培养细胞,活器官和动物,以及组织里的测量中,引用使用市场上可以买到的NO电子传感器发表的文章很少?
Due to the inherent technical limitations (e.g. low sensitivity and membrane fragility) with previously available commercial sensors, research involving cultured cells, live organs and animals, and tissues was either very difficult or impossible. The dramatic improvements in our new NO detection technologies now make the before mentioned measurements possible.
常见问题

14. How are the amiNO sensors calibrated?amiNO传感器如何校准?
The sensors are calibrated by a simple, economical, and a reliable chemical reaction for NO production. This reaction is based on the conversion of nitrite to nitric oxide in acidic solution in the presence of iodide ion. The reaction has a ratio of one to one, meaning that the amount of NO produced in this reaction equal to the amount of nitrite added. Of course other methods such as SNAP and NO saturated solutions can be used.
15. Can these sensors be used to measure nitrite and nitrate?这些传感器可否用于测量亚硝酸盐和硝酸盐?
Yes, the concentration of nitrite in a sample can be measured by injecting a certain volume of the sample into an acid/iodide solution in which nitrite is converted to NO, then detected by the sensor. To measure nitrate, it must be first converted to nitrite using our Nitrate Reductor.
常见问题
16. What is the life time of these amiNO sensors?这些amiNO的工作寿命是多少?
The general life time of the ‘amiNO’ sensors varies from one sensor to another. The ainiNO-2000 is very durable and can be used for years. This sensor is supplied with extra membrane sleeves that can be changed by the user as needed. The amiNO-IV and amiNO-FLAT are constructed of very tough membranes that are not easily damaged. They can last for a year or longer. The main factor effecting the life time of all sensors depends mainly on the care used in handling and storing them.
17. What instrument(s) can be used with the amiNO sensors?amiNO传感器可以与哪些仪器一起使用?
For optimum results it is recommended that the ‘amiNO’ sensors be used only with the ‘inNO-T’ Nitric Oxide Measuring System. Sensors can be compatible with other existing NO meters on the market today through the use of available adapters.
 
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