{"id":680521,"date":"2024-11-16T19:27:37","date_gmt":"2024-11-16T18:27:37","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=680521"},"modified":"2024-11-16T19:27:37","modified_gmt":"2024-11-16T18:27:37","slug":"phan-tich-khi-phat-sinh-ega","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/phan-tich-khi-phat-sinh-ega\/","title":{"rendered":"Ph\u00e2n T\u00edch Kh\u00ed Ph\u00e1t Sinh (EGA)"},"content":{"rendered":"

Ph\u00e2n T\u00edch Kh\u00ed Ph\u00e1t Sinh (EGA): Hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd, \u1ee9ng d\u1ee5ng trong ng\u00e0nh nhi\u1ec7t k\u1ef9 thu\u1eadt v\u00e0 c\u00e1ch \u0111o l\u01b0\u1eddng hi\u1ec7u qu\u1ea3 c\u00e1c lo\u1ea1i kh\u00ed ph\u00e1t sinh t\u1eeb qu\u00e1 tr\u00ecnh nhi\u1ec7t n\u0103ng.<\/p>\n

\"Ph\u00e2n<\/p>\n

Ph\u00e2n T\u00edch Kh\u00ed Ph\u00e1t Sinh (EGA)<\/h2>\n

Ph\u00e2n T\u00edch Kh\u00ed Ph\u00e1t Sinh (EGA, vi\u1ebft t\u1eaft t\u1eeb Evolution Gas Analysis) l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt trong ng\u00e0nh k\u1ef9 thu\u1eadt nhi\u1ec7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch v\u00e0 \u0111o l\u01b0\u1eddng c\u00e1c kh\u00ed sinh ra t\u1eeb m\u1ed9t m\u1eabu v\u1eadt khi n\u00f3 \u0111\u01b0\u1ee3c nung n\u00f3ng. K\u1ef9 thu\u1eadt n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong vi\u1ec7c nghi\u00ean c\u1ee9u c\u00e1c v\u1eadt li\u1ec7u m\u1edbi, ki\u1ec3m tra s\u1ef1 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t v\u00e0 ph\u00e2n t\u00edch th\u00e0nh ph\u1ea7n ch\u1ea5t th\u1ea3i hay c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ee5 t\u1eeb c\u00e1c qu\u00e1 tr\u00ecnh nhi\u1ec7t h\u00f3a.<\/p>\n

Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng<\/h2>\n

Khi m\u1ed9t m\u1eabu v\u1eadt \u0111\u01b0\u1ee3c \u0111\u1ed1t n\u00f3ng, n\u00f3 s\u1ebd gi\u1ea3i ph\u00f3ng c\u00e1c kh\u00ed ho\u1eb7c h\u01a1i. C\u00e1c kh\u00ed n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh l\u01b0\u1ee3ng v\u00e0 x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng nh\u01b0 m\u00e1y quang ph\u1ed5 kh\u1ed1i (MS), m\u00e1y quang ph\u1ed5 h\u1ed3ng ngo\u1ea1i (FTIR) ho\u1eb7c m\u00e1y s\u1eafc k\u00fd kh\u00ed (GC). C\u00e1c b\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a qu\u00e1 tr\u00ecnh EGA bao g\u1ed3m:<\/p>\n

    \n
  1. Nung n\u00f3ng m\u1eabu v\u1eadt: M\u1eabu v\u1eadt \u0111\u01b0\u1ee3c nung trong m\u1ed9t kho\u1ea3ng nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh \u0111\u1ec3 gi\u1ea3i ph\u00f3ng kh\u00ed.<\/li>\n
  2. Thu th\u1eadp kh\u00ed: C\u00e1c kh\u00ed sinh ra \u0111\u01b0\u1ee3c d\u1eabn qua m\u1ed9t h\u1ec7 th\u1ed1ng l\u1ea5y m\u1eabu \u0111\u1ec3 ph\u00e2n t\u00edch.<\/li>\n
  3. Ph\u00e2n t\u00edch kh\u00ed: C\u00e1c kh\u00ed \u0111\u01b0\u1ee3c \u0111\u1ecbnh danh v\u00e0 \u0111\u1ecbnh l\u01b0\u1ee3ng th\u00f4ng qua c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch kh\u00e1c nhau.<\/li>\n<\/ol>\n

    \u1ee8ng D\u1ee5ng<\/h2>\n

    K\u1ef9 thu\u1eadt ph\u00e2n t\u00edch kh\u00ed ph\u00e1t sinh c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng trong c\u1ea3 nghi\u00ean c\u1ee9u v\u00e0 c\u00f4ng nghi\u1ec7p:<\/p>\n

      \n
    • Ph\u00e2n t\u00edch v\u1eadt li\u1ec7u:<\/b> EGA gi\u00fap x\u00e1c \u0111\u1ecbnh th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u m\u1edbi.<\/li>\n
    • Ph\u00e2n t\u00edch polyme:<\/b> Gi\u00fap ki\u1ec3m tra s\u1ef1 tho\u00e1i h\u00f3a v\u00e0 t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a polyme khi c\u00f3 s\u1ef1 gia nhi\u1ec7t.<\/li>\n
    • C\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t:<\/b> \u0110\u00e1nh gi\u00e1 c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc v\u00e0 s\u1ea3n xu\u1ea5t c\u00e1c ch\u1ea5t h\u00f3a h\u1ecdc m\u1edbi.<\/li>\n
    • M\u00f4i tr\u01b0\u1eddng:<\/b> Ph\u00e2n t\u00edch kh\u00ed th\u1ea3i t\u1eeb c\u00e1c qu\u00e1 tr\u00ecnh c\u00f4ng nghi\u1ec7p \u0111\u1ec3 ki\u1ec3m tra v\u00e0 gi\u1ea3m thi\u1ec3u \u00f4 nhi\u1ec5m.<\/li>\n<\/ul>\n

      Ph\u01b0\u01a1ng Ph\u00e1p Ph\u00e2n T\u00edch Kh\u00ed<\/h2>\n

      C\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch kh\u00ed trong EGA, m\u1ed7i ph\u01b0\u01a1ng ph\u00e1p c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m ri\u00eang:<\/p>\n

        \n
      • Quang ph\u1ed5 kh\u1ed1i (MS):<\/b> Cho ph\u00e9p nh\u1eadn di\u1ec7n c\u00e1c ion d\u1ef1a tr\u00ean t\u1ec9 l\u1ec7 kh\u1ed1i l\u01b0\u1ee3ng\/\u0111i\u1ec7n t\u00edch c\u1ee7a ch\u00fang. \u0110\u1eb7c bi\u1ec7t nh\u1ea1y c\u1ea3m v\u00e0 ch\u00ednh x\u00e1c.<\/li>\n
      • Quang ph\u1ed5 h\u1ed3ng ngo\u1ea1i (FTIR):<\/b> S\u1eed d\u1ee5ng \u00e1nh s\u00e1ng h\u1ed3ng ngo\u1ea1i \u0111\u1ec3 \u0111o \u0111\u1ed9 h\u1ea5p th\u1ee5 c\u1ee7a c\u00e1c li\u00ean k\u1ebft h\u00f3a h\u1ecdc, gi\u00fap nh\u1eadn di\u1ec7n c\u00e1c nh\u00f3m ch\u1ee9c h\u00f3a h\u1ecdc trong kh\u00ed.<\/li>\n
      • S\u1eafc k\u00fd kh\u00ed (GC):<\/b> Ph\u00e2n t\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n kh\u00ed d\u1ef1a tr\u00ean t\u1ed1c \u0111\u1ed9 di chuy\u1ec3n kh\u00e1c nhau qua m\u1ed9t c\u1ed9t s\u1eafc k\u00fd.<\/li>\n<\/ul>\n

        Th\u1ef1c H\u00e0nh EGA<\/h2>\n
          \n
        1. Chu\u1ea9n b\u1ecb m\u1eabu: Ch\u1ecdn m\u1ed9t l\u01b0\u1ee3ng m\u1eabu th\u00edch h\u1ee3p v\u00e0 \u0111\u1eb7t v\u00e0o h\u1ec7 th\u1ed1ng nhi\u1ec7t.<\/li>\n
        2. Thi\u1ebft l\u1eadp nhi\u1ec7t \u0111\u1ed9: \u0110\u1eb7t nhi\u1ec7t \u0111\u1ed9 b\u1eaft \u0111\u1ea7u v\u00e0 t\u1ed1c \u0111\u1ed9 t\u0103ng nhi\u1ec7t \u0111\u1ed9 ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u ph\u00e2n t\u00edch.<\/li>\n
        3. Thu th\u1eadp d\u1eef li\u1ec7u: Ghi l\u1ea1i d\u1eef li\u1ec7u nhi\u1ec7t \u0111\u1ed9 v\u00e0 c\u00e1c kh\u00ed sinh ra trong qu\u00e1 tr\u00ecnh nung n\u00f3ng.<\/li>\n
        4. Ph\u00e2n t\u00edch d\u1eef li\u1ec7u: S\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m chuy\u00ean d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch c\u00e1c k\u1ebft qu\u1ea3 \u0111\u00e3 thu th\u1eadp.<\/li>\n<\/ol>\n

          K\u1ebft Lu\u1eadn<\/h2>\n

          Ph\u00e2n T\u00edch Kh\u00ed Ph\u00e1t Sinh (EGA) l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd trong ng\u00e0nh k\u1ef9 thu\u1eadt nhi\u1ec7t, cho ph\u00e9p c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u00e0 k\u1ef9 s\u01b0 ph\u00e2n t\u00edch v\u00e0 hi\u1ec3u r\u00f5 c\u00e1c qu\u00e1 tr\u00ecnh nhi\u1ec7t h\u00f3a. B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch kh\u00e1c nhau, EGA gi\u00fap t\u0103ng c\u01b0\u1eddng hi\u1ec3u bi\u1ebft v\u1ec1 v\u1eadt li\u1ec7u v\u00e0 c\u00e1c qu\u00e1 tr\u00ecnh h\u00f3a h\u1ecdc, \u0111\u1ed3ng th\u1eddi h\u1ed7 tr\u1ee3 trong vi\u1ec7c ki\u1ec3m tra v\u00e0 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng c\u1ee7a c\u00e1c qu\u00e1 tr\u00ecnh c\u00f4ng nghi\u1ec7p.<\/p>\n","protected":false},"excerpt":{"rendered":"

          Ph\u00e2n T\u00edch Kh\u00ed Ph\u00e1t Sinh (EGA): Hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd, \u1ee9ng d\u1ee5ng trong ng\u00e0nh nhi\u1ec7t k\u1ef9 thu\u1eadt v\u00e0 c\u00e1ch \u0111o l\u01b0\u1eddng hi\u1ec7u qu\u1ea3 c\u00e1c lo\u1ea1i kh\u00ed ph\u00e1t sinh t\u1eeb qu\u00e1 tr\u00ecnh nhi\u1ec7t n\u0103ng.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"\nPh\u00e2n T\u00edch Kh\u00ed Ph\u00e1t Sinh (EGA)<\/title>\n<meta name=\"description\" content=\"Ph\u00e2n T\u00edch Kh\u00ed Ph\u00e1t Sinh (EGA): Hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd, \u1ee9ng d\u1ee5ng trong ng\u00e0nh nhi\u1ec7t k\u1ef9 thu\u1eadt v\u00e0 c\u00e1ch \u0111o l\u01b0\u1eddng hi\u1ec7u qu\u1ea3 c\u00e1c lo\u1ea1i kh\u00ed ph\u00e1t sinh t\u1eeb qu\u00e1 tr\u00ecnh nhi\u1ec7t n\u0103ng.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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