Folgende Warnungen sind aufgetreten:
Warning [2] Constant THIS_SCRIPT already defined - Line: 13 - File: inc/plugins/threads_posted_in.php PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
/inc/plugins/threads_posted_in.php 13 errorHandler->error_callback
/inc/class_plugins.php 38 require_once
/inc/init.php 235 pluginSystem->load
/global.php 20 require_once
/showthread.php 28 require_once
Warning [2] Undefined variable $unreadreports - Line: 25 - File: global.php(961) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
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/global.php 961 eval
/showthread.php 28 require_once
Warning [2] Undefined array key "portal" - Line: 410 - File: inc/plugins/sidebox.php PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
/inc/plugins/sidebox.php 410 errorHandler->error_callback
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined variable $username - Line: 5 - File: inc/plugins/sidebox.php(491) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php(491) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/sidebox.php 491 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 2 - File: inc/plugins/sidebox.php(494) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
/inc/plugins/sidebox.php(494) : eval()'d code 2 errorHandler->error_callback
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/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(494) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php(494) : eval()'d code 2 errorHandler->error_callback
/inc/plugins/sidebox.php 494 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 2 - File: inc/plugins/sidebox.php(494) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php(494) : eval()'d code 2 errorHandler->error_callback
/inc/plugins/sidebox.php 494 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(494) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php(494) : eval()'d code 2 errorHandler->error_callback
/inc/plugins/sidebox.php 494 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 2 - File: inc/plugins/sidebox.php(545) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
/inc/plugins/sidebox.php(545) : eval()'d code 2 errorHandler->error_callback
/inc/plugins/sidebox.php 545 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(545) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php 545 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 2 - File: inc/plugins/sidebox.php(545) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php 545 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(545) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php 545 eval
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/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 2 - File: inc/plugins/sidebox.php(551) : eval()'d code PHP 8.1.33 (Linux)
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/showthread.php 470 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(551) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php 551 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 2 - File: inc/plugins/sidebox.php(551) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php 551 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 2 - File: inc/plugins/sidebox.php(551) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php 551 eval
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Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumlink" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumname" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined array key "lastpostlink" - Line: 7 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php(691) : eval()'d code 7 errorHandler->error_callback
/inc/plugins/sidebox.php 691 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
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/inc/plugins/sidebox.php 691 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined array key "forumlink" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
/inc/plugins/sidebox.php(691) : eval()'d code 6 errorHandler->error_callback
/inc/plugins/sidebox.php 691 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined array key "forumname" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
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/inc/plugins/sidebox.php 691 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined array key "lastpostlink" - Line: 7 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
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/inc/plugins/sidebox.php 691 eval
/inc/class_plugins.php 142 sidebox_start
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Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/plugins/sidebox.php 691 eval
/inc/class_plugins.php 142 sidebox_start
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Warning [2] Undefined array key "forumlink" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
/inc/plugins/sidebox.php(691) : eval()'d code 6 errorHandler->error_callback
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Warning [2] Undefined array key "forumname" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "lastpostlink" - Line: 7 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Warning [2] Undefined array key "forumlink" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
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/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined array key "forumname" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
/inc/plugins/sidebox.php(691) : eval()'d code 6 errorHandler->error_callback
/inc/plugins/sidebox.php 691 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined array key "lastpostlink" - Line: 7 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
/inc/plugins/sidebox.php(691) : eval()'d code 7 errorHandler->error_callback
/inc/plugins/sidebox.php 691 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined array key "fullsubject" - Line: 4 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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/inc/class_error.php 153 errorHandler->error
/inc/plugins/sidebox.php(691) : eval()'d code 4 errorHandler->error_callback
/inc/plugins/sidebox.php 691 eval
/inc/class_plugins.php 142 sidebox_start
/showthread.php 470 pluginSystem->run_hooks
Warning [2] Undefined array key "forumlink" - Line: 6 - File: inc/plugins/sidebox.php(691) : eval()'d code PHP 8.1.33 (Linux)
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Schwefelgehaltsmessung?
#2
Hi,

> Wie kann man

den Schwefelgehalt/ den gehalt von Natriumsulfit messen, mit welchem

Gerät/Titration,...

Es gibt da verschiedene Möglichkeiten (Testkits z.B. von

Boehringer Mannheim, Teststäbchen von Merck - die sind aber wahrscheinlich zu ungenau - ,

Nasschemisch (komplexometrisch), HPLC mit nachgeschaltetem biosensor....) Einfach mal beim

Laborfachhandel nachfragen, die können Dir sicherlich weiterhelfen. Ansonsten mal schauen,

ob es bei Beuth nen Untersuchungsverfahren nach §64 LFGB (ehemals §35 LMBG) zur

Sulfitbestimmung gibt.


> Reagiert Wasser und Natriumslufit?
Natriumsulfit

wirkt reduzierend (wird also selber oxidiert) und wandelt sich imho mit der Zeit zu

Natriumsulfat um.

Gruß
Gunnar <!-- Icon_cool --><img src="{SMILIES_PATH}/icon_cool.gif" alt="8)" title="Cool" /><!-- Icon_cool -->
  Zitieren


Nachrichten in diesem Thema
Schwefelgehaltsmessung? - von Waldemarie - 31.07.2006, 06:19
[Kein Betreff] - von Kyylshrunk - 31.07.2006, 08:18
[Kein Betreff] - von Waldemarie - 31.07.2006, 08:37
[Kein Betreff] - von Michael Bäuml - 31.07.2006, 13:24

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