Recording spectral-flame photometer apparatus and method

Claim 1

A METHOD OF SPECTRAL-FLAME ALAYSIS OF A LIQUID CONTAINING A SUBSTANCE AND AN INTERNAL STANDARD AS CONSTITUENTS THEREOF, SAID METHOD COMPRISING THE STEPS OF INTRODUCING SAID LIQUID INTO SAID FLAME, DERIVING A FIRST QUANTITY OF LIGHT REPRESENTATIVE OF THE QUANTITY OF SAID SUBSTANCE IN SAID LIQUID, DERIVING A SECOND QUANTITY OF LIGHT REPRESENTATIVE OF THE QUANTITY OF SAID INTERNAL STANDARD IN SAID LIQUID, RESPECTIVELY APPLYING SAID FIRST AND SECOND QUANTITIES OF LIGHT TO FIRST AND SECOND PHOTOSENSITIVE DEVICE, WHEREBY FIRST AND SECOND ELECTRICAL CURRENTS ARE RESPECTIVELY INDUCED IN SAID PHOTOSENSITIVE DEVICES, SAID FIRST CURRENT COMPRISING A RELATIVELY INVARIENT COMPONENT PRIMARILY DUE TO THE PRESENCE OF SAID SUBSTANCE IN SAID FLAME AND A RELATIVELY RAPIDLY FLUCTUATING COMPONENT PRIMARILY DUE TO TRANSIENT VARIATIONS IN THE INTENSITY OF SAID FLAME, AND SAID SECOND CURRENT COMPRISING A RLEATIVELY INVARIENT COMPONENT PRIMARILY DUE TO THE PRESENCE OF SAID INTERNAL STANDARD IN SAID FLAME ANDA RELATIVELY RAPIDLY FLUCTATING COMPONENT PRIMARILY DUE TO TRANSIENT VARIATIONS IN THE INTENSDITY OF SAID FLAME, IMPRESSING SAID ELECTRICAL CURRENTS UPON IMPEDANCE MEANS, DETECTING FIRST AND SECOND ELECTRICAL SIGNALS ACROSS AT LEAST A PORTION OF SAID IMPEDANCE MEANS, DRIVING A NULL-TYPE CURRENT BALANCING RECORDER WITH SAID ELECTRICAL SIGNALS, AND ADJUSTING THE IMPEDANCE OF SAID IMPEDANCE MEANS TO RENDER THE FLUCTUATING COMPONENTS OF SAID FIRST AND SECOND ELECTRICAL CURRENTS SUBSTANTIALLY EQUAL TO EACH OTHER IN THE PORTION OF SAID IMPEDANCE MEANS ACROSS WHICH SAID ELECTRICAL SIGNAL ARE DETECTED.

Claim 2

A METHOD OF SPECTRAL-FLAME ALAYSIS OF A LIQUID CONTAINING A SUBSTANCE AND AN INTERNAL STANDARD AS CONSTITUENTS THEREOF, SAID METHOD COMPRISING THE STEPS OF INTRODUCING SAID LIQUID INTO SAID FLAME, DERIVING A FIRST QUANTITY OF LIGHT REPRESENTATIVE OF THE QUANTITY OF SAID SUBSTANCE IN SAID LIQUID, DERIVING A SECOND QUANTITY OF LIGHT REPRESENTATIVE OF THE QUANTITY OF SAID INTERNAL STANDARD IN SAID LIQUID, RESPECTIVELY APPLYING SAID FIRST AND SECOND QUANTITIES OF LIGHT TO FIRST AND SECOND PHOTOSENSITIVE DEVICE, WHEREBY FIRST AND SECOND ELECTRICAL CURRENTS ARE RESPECTIVELY INDUCED IN SAID PHOTOSENSITIVE DEVICES, SAID FIRST CURRENT COMPRISING A RELATIVELY INVARIENT COMPONENT PRIMARILY DUE TO THE PRESENCE OF SAID SUBSTANCE IN SAID FLAME AND A RELATIVELY RAPIDLY FLUCTUATING COMPONENT PRIMARILY DUE TO TRANSIENT VARIATIONS IN THE INTENSITY OF SAID FLAME, AND SAID SECOND CURRENT COMPRISING A RLEATIVELY INVARIENT COMPONENT PRIMARILY DUE TO THE PRESENCE OF SAID INTERNAL STANDARD IN SAID FLAME ANDA RELATIVELY RAPIDLY FLUCTATING COMPONENT PRIMARILY DUE TO TRANSIENT VARIATIONS IN THE INTENSDITY OF SAID FLAME, IMPRESSING SAID ELECTRICAL CURRENTS UPON IMPEDANCE MEANS, DETECTING FIRST AND SECOND ELECTRICAL SIGNALS ACROSS AT LEAST A PORTION OF SAID IMPEDANCE MEANS, DRIVING A NULL-TYPE CURRENT BALANCING RECORDER WITH SAID ELECTRICAL SIGNALS, AND ADJUSTING THE IMPEDANCE OF SAID IMPEDANCE MEANS TO RENDER THE FLUCTUATING COMPONENTS OF SAID FIRST AND SECOND ELECTRICAL CURRENTS SUBSTANTIALLY EQUAL TO EACH OTHER IN THE PORTION OF SAID IMPEDANCE MEANS ACROSS WHICH SAID ELECTRICAL SIGNAL ARE DETECTED.