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Á¦   Á¶   »ç : VELP (À¯·´)
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NDA 702 Dumas Nitrogen Analyzer
Consumables for NDA Dumas Nitrogen Analyzer
Cat. No.
NDA 702 Dumas Nitrogen Analyzer °ßÀû¿äû

Dumas ¹ýÀ» ÀÌ¿ëÇÏ¿© Áú¼Ò/´Ü¹éÁú ÇÔ·®À» ÀÚµ¿À¸·Î ºÐ¼®ÇÏ´Â Àåºñ
- »ùÇôç ÃøÁ¤ ½Ã°£ : 3-4 ºÐ
- »ùÇôç 0.1 ~ 200mg ÀÇ Áú¼Ò ÇÔ·® ÃøÁ¤
- »ùÇôç ÃÖ¼Ò 0.003 mg ±îÁö ÃøÁ¤°¡´É
- ÃÖ´ë 120°³ »ùÇà ¼³Ä¡ÇÏ¿© ¿¬¼ÓÀûÀ¸·Î ÃøÁ¤ °¡´É
NDA 702 : He ¶Ç´Â Ar À» carrier gas ·Î ÀÌ¿ë°¡´ÉÇÑ ¸ðµ¨

µÎ¸¶ ¿ø¸®¸¦ ÀÌ¿ëÇÏ¿© Áú¼Ò/´Ü¹éÁú ÇÔ·® ºÐ¼®
sample À» °í»ê¼Ò ³óµµ¿¡¼­ ¿¬¼Ò ½ÃŲ ÈÄ ¿¬¼ÒµÈ ±âü³»¿¡¼­ ´Ù¸¥ ¼ººÐÀ» ¸ðµÎ Á¦°ÅÇÏ°í Áú¼Ò¼ººÐ¸¸ TCD °ËÃâ±â¸¦ ÀÌ¿ëÇÏ¿© °ËÃâÇÏ¿© ÇÔ·®À» ÃøÁ¤ÇÏ´Â Àåºñ
Áú¼Ò ÃøÁ¤°ú ºÐ¼® Àü°úÁ¤ÀÌ ÀÚµ¿À¸·Î ÀÌ·ç¾îÁö´Â Àåºñ
ÃÖ´ë 120°³ÀÇ sample À» ¿¬¼Ó ÀÚµ¿À¸·Î ÃøÁ¤ °¡´ÉÇÑ Àåºñ
: 30 °³ÀÇ sample À» ³ÖÀ» ¼ö ÀÖ´Â sample disc ¸¦ ÃÖ´ë 4°³ ÀåÂø °¡´É
sample ÃøÁ¤, ¿¬¼Ò, ȯ¿ø, Áú¼Ò ÃøÁ¤ ¹× ºÐ¼® µî Àü °úÁ¤À» DUMASoftTM Software ¿¡ ÀÇÇØ control µÇ°í ºÐ¼®µÈ´Ù.
ÃøÁ¤ °¡´ÉÇÑ sample ÇϳªÀÇ ¹«°Ô : 1g
sample Çϳª´ç Áú¼Ò ÇÔ·® ÃøÁ¤ ½Ã°£ : ¾à 3 ~ 4 ºÐ
sample ÃøÁ¤ ÈÄ Æó±âµÇ¾î ³ª¿À´Â ¹°ÁúÀÌ ¾ø¾î ģȯ°æÀûÀÎ ºÐ¼®
sample ÀÇ »ê¼Ò ¿¬¼Ò½Ã, sample ÀÇ ¾ç°ú Ư¼º¿¡ ¸Â°Ô »ç¿ëµÇ´Â »ê¼ÒÀÇ ¾çÀ» ÃÖ¼Ò·Î Á¶ÀýÇÏ¿© ºÐ¼®ºñ¿ëÀ» Àý°¨..
sample ´ç ¼Ò¸ðµÇ´Â ºñ¿ëÀÌ °¡Àå Àû´Ù
standard calibration curve ¸¦ °³¼ö Á¦ÇѾøÀÌ ÀúÀå °¡´ÉÇϸç ÇÊ¿äÇÒ °æ¿ì ¾ðÁ¦ µçÁö Áú¼Ò ÇÔ·® ºÐ¼®¿¡ »ç¿ë
Àú¿ï°ú DUMASoftTM Software °¡ ¿¬°áµÇ¾î ÀÖ¾î, sample ÀÇ Áú·® ÃøÁ¤½Ã ÃøÁ¤°ªÀÌ ÀÚµ¿À¸·Î DUMASoftTM Software ¿¡ À̼۵Ǿî ÀúÀåµÊ
ÇϳªÀÇ sample ´ç 0.1 ~ 200mg ÀÇ Áú¼Ò ÇÔ·®À» ÃøÁ¤ ºÐ¼® °¡´É
sample ´ç ÃÖ¼Ò 0.003 mg ±îÁöÀÇ Áú¼Ò ÇÔ·®À» ÃøÁ¤ °¡´É
sample ¿¬¼Ò ÈÄ Á¸ÀçÇÏ´Â Áú¼Ò ÇÔ·®ÀÇ 99.5% ±îÁö ÃøÁ¤ °¡´É
<0.5% ÀÇ Á¤¹ÐÇÑ Áú¼Ò ÃøÁ¤ ÀçÇö¼º
Supplied with
- Start-up kit for 1000 analyses
- DUMASoft¢â NDA 702 Software
- RS232 cable for balance
- Autosampler with disc 1
- USB cable for PC, 5 mt






DUMASoftTM SOFTWARE
DUMASoftTM ´Â NDA Dumas Nitrogen Analyzer ÀÇ ÀÛµ¿°ú Á¡°Ë µî¿¡ »ç¿ëµÇ´Â ÇÁ·Î±×·¥ÀÔ´Ï´Ù.
 
... before the analysis
»ùÇà capsule À» autosampler ¾È¿¡ ³Ö°í sample name À» ÀÔ·ÂÇÑ ÈÄ ÃøÁ¤¹æ¹ý°ú calibration curve ¸¦ ÀÔ·Â, ¼±ÅÃÇϸé software ´Â ÀÚµ¿À¸·Î ÀÔ·ÂµÈ data ¸¦ ¹ÙÅÁÀ¸·Î ºÐ¼®Á¶°ÇÀ» ¼³Á¤ÇÕ´Ï´Ù.
sample À» ¿ÏÀü¿¬¼Ò ½ÃÅ°´Â ÇÊ¿äÇÑ gas ÀÇ ¾çµµ ÃÖ¼ÒÇÑÀ¸·Î ¼³Á¤ÇÕ´Ï´Ù.
Áú¼Ò ÇÔÀ¯·®ÀÌ Àß ¾Ë·ÁÁø EDTA ¿Í °°Àº ¹°ÁúÀ» ÀÌ¿ëÇÏ¿© ÀÌ¹Ì ¸¸µé¾î ³õÀº calibration curve Áß¿¡¼­ ¿øÇÏ´Â °ÍÀ» ¼±Á¤ÇÕ´Ï´Ù.
... during the analysis
ºÐ¼®°úÁ¤¿¡ ´ëÇÑ ±×·¡ÇÁ°¡ ½Ç½Ã°£À¸·Î ³ªÅ¸³ª¸ç Áú¼Ò°¡ TCD °ËÃâ±â¿¡ µµ´ÞÇϸé Áú¼Ò ÇÔÀ¯·®¿¡ ´ëÇÑ peak °¡ ³ªÅ¸³ª±â ½ÃÀÛÇÕ´Ï´Ù.
»ç¿ëÀÚ´Â software ÀÇ main window ¿¡¼­ gas ÀÇ flow rate, reactor ÀÇ ¿Âµµ µîÀ» Á¶ÀýÇÏ´Â µî Àåºñ »óŸ¦ °è¼ÓÀûÀ¸·Î È®ÀÎÇÒ ¼ö ÀÖ½À´Ï´Ù.
´ÙÀ½ ºÎÇ°±³È¯½Ã±îÁö ¾ÕÀ¸·Î ¸î¹øÀÇ Å×½ºÆ®¸¦ ´õ ÇÒ ¼ö ÀÖ´ÂÁö, ÀåºñÀÇ ¾î´À ºÎºÐÀ» Á¡°ËÇÏ¿©¾ß ÇÏ´Â Áö µî¿¡ ´ëÇÑ Á¤º¸¸¦ È®ÀÎÇÒ ¼ö ÀÖ½À´Ï´Ù.
... after the analysis
ºÐ¼®ÀÌ ¿Ï·áµÇ¸é software È­¸é¿¡´Â ºÐ¼® °á°ú¿¡ ´ëÇÑ ÀÚ¼¼ÇÑ data °¡ Ÿ³ª³³´Ï´Ù.
Áú¼Ò ÇÔ·®Àº Áú¼Ò mg, Áú¼Ò % ±×¸®°í ´Ü¹éÁú % Áß Çϳª·Î Ç¥½ÃµË´Ï´Ù.
ºÐ¼®°á°ú´Â database ·Î ÀúÀåµÇ¸é ÀúÀåµÈ data ´Â .xls, .txt ±×¸®°í .csv ÀÇ ÇüÅ·ΠÃâ·ÂÀÌ °¡´ÉÇÕ´Ï´Ù.
ºÐ¼® data ´Â ´Ù¸¥ calibration curve ¸¦ ¹ÙÅÁÀ¸·Î ÀçºÐ¼®ÀÌ °¡´ÉÇÕ´Ï´Ù.






NDA 702 Dumas Nitrogen Analyzer Specifications
Method of analysis Dumas method / Combustion
Detector Innovative autocalibrating TCD (no need for a reference gas)
Carrier gas NDA 702: Helium or Argon
Sample weight Up to 1 g
Autosampler capacity Up to 4 discs, 30 positions each
Autosampler type Pneumatic
Reproducibility (RSD) < 0.5% for EDTA standards approx. 100 mg (9.57% N)
Recovery > 99.5%
Detection limit NDA 702: 0.001 mg N (He) or 0.01 mg N (Ar)
Combustion temperature 1030 ¡ÆC
Helium (He) / Argon (Ar) purity 99.999% (grade 5.0)
Oxygen (O2) purity 99.999% (grade 5.0)
Carrier gas pressure 2 bar
Oxygen (O2) pressure 2 bar
Interfaces USB, RS232
Power 1400 W
Power supply 230 V / 50 - 60 Hz
Weight 54 kg
Dimensions (H x W x L) 655 x 510 x 410 mm (655 x 690 x 410 mm including autosampler)



 
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